LUBBOCK — Every winter, after the sea of cotton has been harvested in the South Plains and the ground looks barren, technicians with the High Plains Underground Water Conservation District check the water levels in nearly 75,000 wells across 16 counties. For years, their measurements have shown what farmers and water conservationists fear most—the Ogallala Aquifer, an underground water source that’s the lifeblood of the South Plains agriculture industry, is running dry. That’s because of a century-old law called the rule of capture. The rule is simple: If you own the land above an aquifer in Texas, the water underneath is yours. You can use as much as you want, as long as it’s not wasted or taken maliciously. The same applies to your neighbor. If they happen to use more water than you, then that’s just bad luck. To put it another way, landowners can mostly pump as much water as they choose without facing liability to surrounding landowners whose wells might be depleted as a result. Following the Dust Bowl—and to stave off catastrophe—state lawmakers created groundwater conservation districts in 1949 to protect what water is left. But their power to restrict landowners is limited. “The mission is to save as much water possible for as long as possible, with as little impact on private property rights as possible,” said Jason Coleman, manager for the High Plains Underground Water Conservation District. “How do you do that? It’s a difficult task.” A 1953 map of the wells in Lubbock County hangs in the office of the groundwater district. [Photo: Annie Rice for The Texas Tribune] Rapid population growth, climate change, and aging water infrastructure all threaten the state’s water supply. Texas does not have enough water to meet demand if the state is stricken with a historic drought, according to the Texas Water Development Board, the state agency that manages Texas’ water supply. Lawmakers want to invest in every corner to save the state’s water. This week, they reached a historic $20 billion deal on water projects. High Plains Underground Water District General Manager Jason Coleman stands in the district’s meeting room on May 21 in Lubbock. [Photo: Annie Rice for The Texas Tribune] But no one wants to touch the rule of capture. In a state known for rugged individualism, politically speaking, reforming the law is tantamount to stripping away freedoms. “There probably are opportunities to vest groundwater districts with additional authority,” said Amy Hardberger, director for the Texas Tech University Center for Water Law and Policy. “I don’t think the political climate is going to do that.” State Sen. Charles Perry, a Lubbock Republican, and Rep. Cody Harris, a Palestine Republican, led the effort on water in Austin this year. Neither responded to requests for comment. Carlos Rubinstein, a water expert with consulting firm RSAH2O and a former chairman of the water development board, said the rule has been relied upon so long that it would be near impossible to undo the law. “I think it’s better to spend time working within the rules,” Rubinstein said. “And respect the rule of capture, yet also recognize that, in and of itself, it causes problems.” Even though groundwater districts were created to regulate groundwater, the law effectively stops them from doing so, or they risk major lawsuits. The state water plan, which spells out how the state’s water is to be used, acknowledges the shortfall. Groundwater availability is expected to decline by 25% by 2070, mostly due to reduced supply in the Ogallala and Edwards-Trinity aquifers. Together, the aquifers stretch across West Texas and up through the Panhandle. By itself, the Ogallala has an estimated three trillion gallons of water. Though the overwhelming majority in Texas is used by farmers. It’s expected to face a 50% decline by 2070. Groundwater is 54% of the state’s total water supply and is the state’s most vulnerable natural resource. It’s created by rainfall and other precipitation, and seeps into the ground. Like surface water, groundwater is heavily affected by ongoing droughts and prolonged heat waves. However, the state has more say in regulating surface water than it does groundwater. Surface water laws have provisions that cut supply to newer users in a drought and prohibit transferring surface water outside of basins. Historically, groundwater has been used by agriculture in the High Plains. However, as surface water evaporates at a quicker clip, cities and businesses are increasingly interested in tapping the underground resource. As Texas’ population continues to grow and surface water declines, groundwater will be the prize in future fights for water. In many ways, the damage is done in the High Plains, a region that spans from the top of the Panhandle down past Lubbock. The Ogallala Aquifer runs beneath the region, and it’s faced depletion to the point of no return, according to experts. Simply put: The Ogallala is not refilling to keep up with demand. “It’s a creeping disaster,” said Robert Mace, executive director of the Meadows Center for Water and the Environment. “It isn’t like you wake up tomorrow and nobody can pump anymore. It’s just happening slowly, every year.” [Image: Yuriko Schumacher/The Texas Tribune] Groundwater districts and the law The High Plains Water District was the first groundwater district created in Texas. Over a protracted multi-year fight, the Legislature created these new local government bodies in 1949, with voter approval, enshrining the new stewards of groundwater into the state Constitution. If the lawmakers hoped to embolden local officials to manage the troves of water under the soil, they failed. There are areas with groundwater that don’t have conservation districts. Each groundwater districts has different powers. In practice, most water districts permit wells and make decisions on spacing and location to meet the needs of the property owner. The one thing all groundwater districts have in common: They stop short of telling landowners they can’t pump water. In the seven decades since groundwater districts were created, a series of lawsuits have effectively strangled groundwater districts. Even as water levels decline from use and drought, districts still get regular requests for new wells. They won’t say no out of fear of litigation. The field technician coverage area is seen in Nathaniel Bibbs’ office at the High Plains Underground Water District. Bibbs is a permit assistant for the district. [Photo: Annie Rice for The Texas Tribune] “You have a host of different decisions to make as it pertains to management of groundwater,” Coleman said. “That list has grown over the years.” The possibility of lawsuits makes groundwater districts hesitant to regulate usage or put limitations on new well permits. Groundwater districts have to defend themselves in lawsuits, and most lack the resources to do so. A well spacing guide is seen in Nathaniel Bibbs’ office. [Photo: Annie Rice for The Texas Tribune] “The law works against us in that way,” Hardberger, with Texas Tech University, said. “It means one large tool in our toolbox, regulation, is limited.” The most recent example is a lawsuit between the Braggs Farm and the Edwards Aquifer Authority. The farm requested permits for two pecan orchards in Medina County, outside San Antonio. The authority granted only one and limited how much water could be used based on state law. It wasn’t an arbitrary decision. The authority said it followed the statute set by the Legislature to determine the permit. “That’s all they were guaranteed,” said Gregory Ellis, the first general manager of the authority, referring to the water available to the farm. The Braggs family filed a takings lawsuit against the authority. This kind of claim can be filed when any level of government—including groundwater districts—takes private property for public use without paying for the owner’s losses. Braggs won. It is the only successful water-related takings claim in Texas, and it made groundwater laws murkier. It cost the authority $4.5 million. “I think it should have been paid by the state Legislature,” Ellis said. “They’re the ones who designed that permitting system. But that didn’t happen.” An appeals court upheld the ruling in 2013, and the Texas Supreme Court denied petitions to consider appeals. However, the state’s supreme court has previously suggested the Legislature could enhance the powers of the groundwater districts and regulate groundwater like surface water, just as many other states have done. While the laws are complicated, Ellis said the fundamental rule of capture has benefits. It has saved Texas’ legal system from a flurry of lawsuits between well owners. “If they had said ‘Yes, you can sue your neighbor for damaging your well,’ where does it stop?” Ellis asked. “Everybody sues everybody.” Coleman, the High Plains district’s manager, said some people want groundwater districts to have more power, while others think they have too much. Well owners want restrictions for others, but not on them, he said. “You’re charged as a district with trying to apply things uniformly and fairly,” Coleman said. Can’t reverse the past Two tractors were dropping seeds around Walt Hagood’s farm as he turned on his irrigation system for the first time this year. He didn’t plan on using much water. It’s too precious. The cotton farm stretches across 2,350 acres on the outskirts of Wolfforth, a town 12 miles southwest of Lubbock. Hagood irrigates about 80 acres of land, and prays that rain takes care of the rest. Walt Hagood drives across his farm on May 12, in Wolfforth. Hagood utilizes “dry farming,” a technique that relies on natural rainfall. [Photo: Annie Rice for The Texas Tribune] “We used to have a lot of irrigated land with adequate water to make a crop,” Hagood said. “We don’t have that anymore.” The High Plains is home to cotton and cattle, multi-billion-dollar agricultural industries. The success is in large part due to the Ogallala. Since its discovery, the aquifer has helped farms around the region spring up through irrigation, a way for farmers to water their crops instead of waiting for rain that may not come. But as water in the aquifer declines, there are growing concerns that there won’t be enough water to support agriculture in the future. At the peak of irrigation development, more than 8.5 million acres were irrigated in Texas. About 65% of that was in the High Plains. In the decades since the irrigation boom, High Plains farmers have resorted to methods that might save water and keep their livelihoods afloat. They’ve changed their irrigation systems so water is used more efficiently. They grow cover crops so their soil is more likely to soak up rainwater. Some use apps to see where water is needed so it’s not wasted. A furrow irrigation is seen at Walt Hagood’s cotton farm. [Photo: Annie Rice for The Texas Tribune] Farmers who have not changed their irrigation systems might not have a choice in the near future. It can take a week to pump an inch of water in some areas from the aquifer because of how little water is left. As conditions change underground, they are forced to drill deeper for water. That causes additional problems. Calcium can build up, and the water is of poorer quality. And when the water is used to spray crops through a pivot irrigation system, it’s more of a humidifier as water quickly evaporates in the heat. According to the groundwater district’s most recent management plan, 2 million acres in the district use groundwater for irrigation. About 95% of water from the Ogallala is used for irrigated agriculture. The plan states that the irrigated farms “afford economic stability to the area and support a number of other industries.” The state water plan shows groundwater supply is expected to decline, and drought won’t be the only factor causing a shortage. Demand for municipal use outweighs irrigation use, reflecting the state’s future growth. In Region O, which is the South Plains, water for irrigation declines by 2070 while demand for municipal use rises because of population growth in the region. Coleman, with the High Plains groundwater district, often thinks about how the aquifer will hold up with future growth. There are some factors at play with water planning that are nearly impossible to predict and account for, Coleman said. Declining surface water could make groundwater a source for municipalities that didn’t depend on it before. Regions known for having big, open patches of land, like the High Plains, could be attractive to incoming businesses. People could move to the country and want to drill a well, with no understanding of water availability. The state will continue to grow, Coleman said, and all the incoming businesses and industries will undoubtedly need water. “We could say ‘Well, it’s no one’s fault. We didn’t know that factory would need 20,000 acre-feet of water a year,” Coleman said. “It’s not happening right now, but what’s around the corner?” Coleman said this puts agriculture in a tenuous position. The region is full of small towns that depend on agriculture and have supporting businesses, like cotton gins, equipment and feed stores, and pesticide and fertilizer sprayers. This puts pressure on the High Plains water district, along with the two regional water planning groups in the region, to keep agriculture alive. “Districts are not trying to reduce pumping down to a sustainable level,” said Mace with the Meadows Foundation. “And I don’t fault them for that, because doing that is economic devastation in a region with farmers.” Hagood, the cotton farmer, doesn’t think reforming groundwater rights is the way to solve it. What’s done is done, he said. “Our U.S. Constitution protects our private property rights, and that’s what this is all about,” Hagood said. “Any time we have a regulation and people are given more authority, it doesn’t work out right for everybody.” Rapid population growth, climate change, and aging water infrastructure all threaten the state’s water supply. [Photo: Annie Rice for The Texas Tribune] What can be done The state water plan recommends irrigation conservation as a strategy. It’s also the least costly water management method. But that strategy is fraught. Farmers need to irrigate in times of drought, and telling them to stop can draw criticism. In Eastern New Mexico, the Ogallala Land and Water Conservancy, a nonprofit organization, has been retiring irrigation wells. Landowners keep their water rights, and the organization pays them to stop irrigating their farms. Landowners get paid every year as part of the voluntary agreement, and they can end it at any point. Ladona Clayton, executive director of the organization, said they have been criticized, with their efforts being called a “war” and “land grab.” They also get pushback on why the responsibility falls on farmers. She said it’s because of how much water is used for irrigation. They have to be aggressive in their approach, she said. The aquifer supplies water to the Cannon Air Force Base. “We don’t want them to stop agricultural production,” Clayton said. “But for me to say it will be the same level that irrigation can support would be untrue.” There is another possible lifeline that people in the High Plains are eyeing as a solution: the Dockum Aquifer. It’s a minor aquifer that underlies part of the Ogallala, so it would be accessible to farmers and ranchers in the region. The High Plains Water District also oversees this aquifer. If it seems too good to be true—that the most irrigated part of Texas would just so happen to have another abundant supply of water flowing underneath—it’s because there’s a catch. The Dockum is full of extremely salty brackish water. Some counties can use the water for irrigation and drinking water without treatment, but it’s unusable in others. According to the groundwater district, a test well in Lubbock County pulled up water that was as salty as seawater. Rubinstein, the former water development board chairman, said there are pockets of brackish groundwater in Texas that haven’t been tapped yet. It would be enough to meet the needs on the horizon, but it would also be very expensive to obtain and use. A landowner would have to go deeper to get it, then pump the water over a longer distance. “That costs money, and then you have to treat it on top of that,” Rubinstein said. “But, it is water.” Landowners have expressed interest in using desalination, a treatment method to lower dissolved salt levels. Desalination of produced and brackish water is one of the ideas that was being floated around at the Legislature this year, along with building a pipeline to move water across the state. Hagood, the farmer, is skeptical. He thinks whatever water they move could get used up before it makes it all the way to West Texas. There is always brackish groundwater. Another aquifer brings the chance of history repeating—if the Dockum aquifer is treated so its water is usable, will people drain it, too? Hagood said there would have to be limits. Disclosure: Edwards Aquifer Authority and Texas Tech University have been financial supporters of The Texas Tribune. Financial supporters play no role in the Tribune’s journalism. Find a complete list of them here. This article originally appeared in The Texas Tribune, a member-supported, nonpartisan newsroom informing and engaging Texans on state politics and policy. Learn more at texastribune.org.

Here’s a selection of recent headlines about artificial intelligence, picked more or less at random:For some recent graduates, the AI job apocalypse may already be hereArtificial intelligence threatens to raid the water reserves of Europe’s driest regionsTop AI CEO foresees white-collar bloodbathOkay, not exactly at random — I did look for more doomy-sounding headlines. But they weren’t hard to find. That’s because numerous studies indicate that negative or fear-framed coverage of AI in mainstream media tends to outnumber positive framings. And to be clear, there are good reasons for that! From disinformation to cyberwarfare to autonomous weapons to massive job loss to the actual, flat-out end of the world (shameless plug of my book here), there are a lot of things that could go very, very wrong with AI. But as in so many other areas, the emphasis on the negative in artificial intelligence risks overshadowing what could go right — both in the future as this technology continues to develop and right now. As a corrective (and maybe just to ingratiate myself to our potential future robot overlords), here’s a roundup of one way in which AI is already making a positive difference in three important fields.ScienceWhenever anyone asks me about an unquestionably good use of AI, I point to one thing: AlphaFold. After all, how many other AI models have won their creators an actual Nobel Prize? AlphaFold, which was developed by the Google-owned AI company DeepMind, is an AI model that predicts the 3D structures of proteins based solely on their amino acid sequences. That’s important because scientists need to predict the shape of protein to better understand how it might function and how it might be used in products like drugs. That’s known as the “protein-folding problem” — and it was a problem because while human researchers could eventually figure out the structure of a protein, it would often take them years of laborious work in the lab to do so. AlphaFold, through machine-learning methods I couldn’t explain to you if I tried, can make predictions in as little as five seconds, with accuracy that is almost as good as gold-standard experimental methods. By speeding up a basic part of biomedical research, AlphaFold has already managed to meaningfully accelerate drug development in everything from Huntington’s disease to antibiotic resistance. And Google DeepMind’s decision last year to open source AlphaFold3, its most advanced model, for non-commercial academic use has greatly expanded the number of researchers who can take advantage of it.MedicineYou wouldn’t know it from watching medical dramas like The Pitt, but doctors spend a lot of time doing paperwork — two hours of it for every one hour they actually spend with a patient, by one count. Finding a way to cut down that time could free up doctors to do actual medicine and help stem the problem of burnout. That’s where AI is already making a difference. As the Wall Street Journal reported this week, health care systems across the country are employing “AI scribes” — systems that automatically capture doctor-patient discussions, update medical records, and generally automate as much as possible around the documentation of a medical interaction. In one pilot study employing AI scribes from Microsoft and a startup called Abridge, doctors cut back daily documentation time from 90 minutes to under 30 minutes. Not only do ambient-listening AI products free doctors from much of the need to make manual notes, but they can eventually connect new data from a doctor-patient interaction with existing medical records and ensure connections and insights on care don’t fall between the cracks. “I see it being able to provide insights about the patient that the human mind just can’t do in a reasonable time,” Dr. Lance Owens, regional chief medical information officer at University of Michigan Health, told the Journal.ClimateA timely warning about a natural disaster can mean the difference between life and death, especially in already vulnerable poor countries. That is why Google Flood Hub is so important.An open-access, AI-driven river-flood early warning system, Flood Hub provides seven-day flood forecasts for 700 million people in 100 countries. It works by marrying a global hydrology model that can forecast river levels even in basins that lack physical flood gauges with an inundation model that converts those predicted levels into high-resolution flood maps. This allows villagers to see exactly what roads or fields might end up underwater. Flood Hub, to my mind, is one of the clearest examples of how AI can be used for good for those who need it most. Though many rich countries like the US are included in Flood Hub, they mostly already have infrastructure in place to forecast the effects of extreme weather. (Unless, of course, we cut it all from the budget.) But many poor countries lack those capabilities. AI’s ability to drastically reduce the labor and cost of such forecasts has made it possible to extend those lifesaving capabilities to those who need it most.One more cool thing: The NGO GiveDirectly — which provides direct cash payments to the global poor — has experimented with using Flood Hub warnings to send families hundreds of dollars in cash aid days before an expected flood to help themselves prepare for the worst. As the threat of extreme weather grows, thanks to climate change and population movement, this is the kind of cutting-edge philanthropy.AI for goodEven what seems to be the best applications for AI can come with their drawbacks. The same kind of AI technology that allows AlphaFold to help speed drug development could conceivably be used one day to more rapidly design bioweapons. AI scribes in medicine raise questions about patient confidentiality and the risk of hacking. And while it’s hard to find fault in an AI system that can help warn poor people about natural disasters, the lack of access to the internet in the poorest countries can limit the value of those warnings — and there’s not much AI can do to change that.But with the headlines around AI leaning so apocalyptic, it’s easy to overlook the tangible benefits AI already delivers. Ultimately AI is a tool. A powerful tool, but a tool nonetheless. And like any tool, what it will do — bad and good — will be determined by how we use it.A version of this story originally appeared in the Good News newsletter. Sign up here!See More:

The Missing Room / Carroccera CollectiveSave this picture!•Italy Architects: Carroccera Collective Year Completion year of this architecture project Year:  2025 Photographs Photographs: Lead Architects: Gianfrancesco Brivio Sforza, Dariia Nepop, Nacha Palomeque Coll, Caspar Schols, Angelica Rimoldi More SpecsLess Specs Save this picture! Text description provided by the architects. The Missing Room is a living space designed to encourage new rituals and patterns of use, offering an opportunity to enter an alternative time zone and experience a passage between a human-controlled environment and an untamed natural one. It is a room that has escaped the rigid confines of a defined house, choosing to exist without walls or a ceiling – a place where nature becomes the main inhabitant and visitors are invited to act as respectful guests. As one enters the Carroccera landscape, the search begins. Meandering through the land, the Missing Room gradually reveals itself, with the wanderer catching shimmering glimpses of smaller secondary structures shining through the forest greenery. This collection of visual fragments prepares the visitor for the main encounter, enriching the landscape with its enigmatic shapes and forms.Save this picture!Save this picture!Save this picture!The Missing Room is not simply a shelter but a space that invites discovery. A collection of abstract forms with a core activated by water and fire, it reimagines the most primal human rituals: resting, eating, cleansing, and conversing. These activities mix in unexpected yet harmonious ways. While guests cook over a crackling open fire, another inhabitant bathes in a heated bath, and a cow drinks from an integrated trough—all beneath a ceiling of tree canopies and the open sky. This space encourages visitors to set their own pace and redefine their pre-existing notions of domesticity. At the core of the Missing Room stands a seven-meter-tall monolith: a multifunctional chimney. On one side, the fire powers the ovens, while on the other, it heats water for bathing and warms the area at the front of the space. This towering form responds to the scale of the surrounding trees, rising like a beacon above the canopies, marking its presence in the landscape and guiding visitors with its smoke signals.Save this picture!Save this picture!Water, like fire, plays a central role in activating the hidden features of the structure. The water flow is released at the entrance of the structure, filling the main collection channel that distributes the flow into various basins throughout the structure. Users are encouraged to interact with the water systems by adding or removing plugs as needed to direct the flow; to fill the bath, use the sink or supply water to the cattle trough. The bath next to the water channel has a built-in natural convection system and comfortably accommodates three to four people. For solo use, the bath's size can be reduced with a partitioning panel and a removable lock to conserve water. Once closed, the bath can be transformed into a heated surface and used as a resting place to sleep at night under the stars.Save this picture!Save this picture!Save this picture!A bespoke sail canopy can be set up to offer shade or protection from rain. Using the chimney as a mast, the fabric is raised with a series of ropes and tensioned at the corners with ground pegs. By day, the canopy catches dappled shadows cast by the surrounding foliage; by night, it reflects light from built-in recessed lighting, transforming the structure into a glowing lantern. The Missing Room reconnects us with the rhythms of nature that have been lost in the contemporary world by reducing the act of dwelling to its very essence. Forest debris is gathered and converted into heat while the wastewater from bathing and cooking is filtered and safely dispersed into the field, providing irrigation and wet areas that contribute to the overall biodiversity of the forest.Save this picture!© Alessandro NanniConstructed with a focus on material and structural sustainability, the stainless steel refuge is durable, recyclable, and resistant to weathering. To protect the land, the modular structure and use of a non-invasive screw-pile foundation ensures that no traces are left behind if the house is required to be removed from the site. The Missing Room is a space for all – humans and non-humans – to share. Above all, the Carroccera Collective conceived of the room as a place to enjoy the very act of being. To invite our guests to slow down, reorient the senses, and rediscover the sensory richness and simplicity of the natural environment. As nature has vanished from our daily rituals and gone missing from our human lives, the room is a space to reveal the forgotten.Save this picture! Project gallerySee allShow less Project locationAddress:Carroccera site, Piedmont, ItalyLocation to be used only as a reference. It could indicate city/country but not exact address.About this office MaterialSteelMaterials and TagsPublished on May 23, 2025Cite: "The Missing Room / Carroccera Collective" 23 May 2025. ArchDaily. Accessed . <https://www.archdaily.com/1030385/the-missing-room-carroccera-collective&gt ISSN 0719-8884Save世界上最受欢迎的建筑网站现已推出你的母语版本!想浏览ArchDaily中国吗?是否 You've started following your first account!Did you know?You'll now receive updates based on what you follow! Personalize your stream and start following your favorite authors, offices and users.Go to my stream

In 2025, one interior design trend is standing out not just for its visual appeal, but for the sense of peace and purpose it brings into the home: Zen Japanese Interior Design. As our lives become increasingly busy and digitized, people are seeking refuge in spaces that calm the mind, soothe the senses, and promote intentional living. Zen Japanese design, rooted in centuries-old traditions of simplicity, nature integration, and mindfulness, offers a lifestyle as much as an aesthetic. This design philosophy embraces natural materials, neutral tones, open spaces, and a “less is more” approach to decorating. In the following sections, we explore 20 compelling reasons why this design approach is not only trending, but transforming how people live, feel, and connect within their homes. 1. Minimalism with Warmth Image Source: Home Designing Unlike the often sterile vibe of Western minimalism, Zen Japanese Interior Design offers a softer, more livable approach to minimalism. It eliminates excess without sacrificing comfort. Natural materials, earthy colors, and soft lighting bring warmth and depth to a room. To apply this, consider removing overly decorative items and replacing them with one or two handcrafted pieces. Use neutral wall paint, avoid over-accessorizing, and integrate simple wooden or ceramic items that serve both aesthetic and practical purposes. This way, your space feels minimal yet full of life and intention. 2. Open and Airy Layouts Image Source: Lena Monroe Zen design principles emphasize the importance of spatial flow and openness. In 2025, many homes are shifting toward open-concept layouts that prioritize movement and air circulation. Zen Japanese Interior Design naturally fits into this evolution, as it values unobstructed spaces that feel light and breathable. To recreate this in your home, start by removing unnecessary partitions or bulky furniture that blocks light.  Use low-profile furniture like floor cushions and coffee tables, and leave walkways clear. Mirrors can help reflect light and make a space feel larger. Consider using light-colored rugs or tatami mats to define areas without cluttering them. 3. Seamless Connection with Nature Image Source: Awedeco Zen Japanese Interior Design deeply values harmony with the natural world. This is achieved through the thoughtful use of materials like bamboo, raw wood, stone, and linen, and through the incorporation of natural light and indoor greenery. In today’s urban environments, where daily interaction with nature is limited, this style helps bridge that gap.  Practically, you can bring nature inside with potted plants like bonsai, ferns, or snake plants. Use furniture made of raw or reclaimed wood, and keep windows uncovered or lightly draped to allow in natural light. Consider installing a small indoor water feature or pebble tray to evoke the soothing sounds and visuals of nature. 4. Soft, Neutral Color Palettes Image Source: Amelia Hallsworth In 2025, bold colors and loud patterns are giving way to the calming embrace of neutral tones. Zen Japanese Interior Design uses a soft, harmonious color palette to create tranquil environments that soothe the senses. Practically speaking, you can adopt this by repainting your walls in shades like ivory, warm beige, or muted gray.  Use textiles such as taupe curtains, off-white bedding, and linen or cotton throws in subdued colors. Avoid glossy or flashy finishes, and opt instead for matte textures and natural surfaces. Even your choice of art should reflect this palette, consider watercolor prints, minimalist ink paintings, or pressed botanical artwork. 5. Shoji Screens and Tatami Mats Image Source: J-Life International Traditional Japanese architectural elements like shoji screens and tatami mats add more than aesthetic charm, they contribute to the function and feel of a space. Shoji screens, often made of wood and rice paper, allow for light diffusion and flexible space separation.  Tatami mats, made from woven straw, provide comfort underfoot and a grounding connection to the earth. To use them in your home, consider replacing doors with sliding panels or using freestanding shoji screens to section off areas. Add tatami mats in reading corners or bedrooms. These features are not just culturally rich, they are practical, lightweight, and perfect for minimalist homes. 6. Understand the Significance of Lighting Image Source: Home Designing Lighting plays a key role in Zen Japanese Interior Design. The goal is to create soft, ambient lighting that promotes relaxation and presence. Instead of harsh overhead lights, use paper lanterns, floor lamps with linen shades, and wall sconces that diffuse warm light.  Natural light should be maximized during the day with sheer curtains or bamboo blinds. At night, use dimmable bulbs and indirect lighting to maintain a peaceful atmosphere. You can even incorporate candles or LED lights that mimic candlelight for added tranquility. The right lighting enhances the minimalist aesthetic and helps shift the mood of your space from stimulating to serene. 7. Select Furniture with Sleek Lines Image Source: Decorilla Furniture in Zen Japanese Interior Design is known for its clean, understated lines and low-profile form. Pieces are designed to blend seamlessly into the space rather than dominate it. To incorporate this, look for sofas, chairs, and tables with simple shapes and minimal ornamentation.  Avoid bulky, ornate furniture in favor of pieces with natural wood finishes or light upholstery in neutral tones. Low seating options like floor cushions or platform beds help foster a closer connection to the earth, which is central to the Zen philosophy. Functional and modest, this furniture style supports a clutter-free and peaceful environment. 8. Sustainable & Vintage-Inspired Elements Image Source: Ana Maria Design Sustainability continues to be a major influence on interior design trends in 2025. Zen Japanese interiors naturally align with this ethos by emphasizing longevity and craftsmanship. Integrating vintage or second-hand pieces not only reduces waste but also adds character and soul to your space.  Look for refurbished wooden benches, antique chests, or heirloom ceramics that match your neutral palette. Choose furniture made from sustainable sources like bamboo, rattan, or reclaimed wood. Mixing the old with the eco-friendly gives your home depth without disrupting its serene essence. 9. Keep Technology Discreet Image Source: Decorilla In 2025, technology is everywhere, but Zen Japanese Interior Design encourages us to keep it behind the scenes. Visible wires, bulky electronics, and flashing lights disrupt the calming ambiance. Instead, look for minimalist tech solutions: Bluetooth speakers that double as art pieces, wall-mounted televisions that disappear into a panel, or hidden cable systems for desks and entertainment areas. Keep smart home devices tucked away or integrated into natural materials. This approach helps your space maintain its serene look while offering all the functionality of a modern home. 10. Embrace Asymmetry and Irregularity Image Source: Decorilla Zen Japanese Interior Design values asymmetry and irregularity as part of its wabi-sabi philosophy. This aesthetic finds beauty in imperfection and avoids forced symmetry. You can integrate this by selecting decor and arrangements that aren’t perfectly aligned or balanced.  Try placing an uneven group of vases on a table, using mismatched ceramic cups, or hanging art slightly off-center to create visual interest. Asymmetry brings a natural and relaxed feel, mirroring the way things appear in nature. In 2025, when overly curated and symmetrical spaces can feel artificial, embracing irregularity offers a refreshing and humanizing touch to interiors. 11. Textured Surfaces for Depth and Warmth Image Source: Vogue Texture plays a significant role in making Zen-inspired spaces feel welcoming and layered. Instead of relying on color or pattern, use texture to create visual and tactile richness. You can achieve this through woven textiles, rough plaster walls, untreated wood furniture, and handmade pottery.  Choose fabrics like linen, cotton, or wool, and incorporate elements such as tatami mats, rattan baskets, or bamboo panels. Mixing these textures subtly ensures a space that feels natural and inviting without appearing busy. 12. Use Water Features for Serenity Image Source: Japandidecor Incorporating water into your Zen-inspired home enhances tranquility and introduces a meditative sensory element. Water is symbolic of renewal and purity in Japanese design. Practical ways to include water features include tabletop fountains, indoor ponds, or stone water basins in entryways or gardens. The sound of flowing water masks background noise and promotes relaxation. Choose minimalist designs that blend with your decor, using natural materials like stone or ceramic. In compact apartments, even a small fountain on a shelf can have a calming effect. 13. Create a Zen Meditation Space Image Source: Indonesiandesign In 2025, many people are seeking ways to integrate wellness into their daily routines. A dedicated Zen meditation space is a practical and transformative addition to your home. Start by selecting a quiet corner with natural light. Add a tatami mat or meditation cushion, a low wooden table for incense or a small sculpture, and soft lighting.  Keep the area free of distractions and visual clutter. Include calming elements like a plant, a stone bowl, or a small bamboo fountain. This minimal setup supports regular mindfulness practice and encourages stillness, making your home a place for both rest and self-discovery. 14. Simple and Functional Storage Solutions Image Source: Making a Green Life By Lily Storage in Zen Japanese Interior Design is subtle, seamless, and always purposeful. Clutter disrupts the flow and calm of a room, so the goal is to keep belongings hidden but accessible. Choose furniture with built-in storage like benches, low cabinets, or under-bed drawers.  Use natural materials such as wood or rattan for storage baskets, and avoid plastic or overly decorative containers. Labeling or color-coding isn’t necessary; simplicity is key. Shoji-style closets or sliding doors are ideal for small spaces, and folding screens can conceal shelves or workspaces. 15. Incorporate Japanese Art and Calligraphy Image Source: Lena Monroe Art in Zen Japanese Interior Design is minimal, meaningful, and often steeped in cultural heritage. Japanese calligraphy (shodo) or sumi-e ink paintings are perfect for bringing intentional beauty into your space. Choose one or two pieces that resonate with a personal value or emotional message.  You can display them in entryways, meditation areas, or above low furniture like benches or consoles. Use traditional hanging scrolls or frame them with natural wood for authenticity. This form of art adds a cultural and spiritual layer to your interiors, reminding you to embrace simplicity, grace, and mindfulness in your daily life. Final Thoughts: Bringing Zen into Your Home Zen Japanese Interior Design is more than an aesthetic, it’s a way of living that brings clarity, calm, and connection into our everyday environments. In today’s fast-paced world, designing a home isn’t just about choosing furniture or color palettes; it’s about creating a space that supports your well-being, reflects your values, and enhances your lifestyle. Home Designing is dedicated to making design both inspiring and accessible. Our platform shares ideas that help you visualize your space, discover new products, and turn inspiration into action, making it easier to create a home that truly reflects you.

In the high desert east of Reno, Nevada, construction crews are flattening the golden foothills of the Virginia Range, laying the foundations of a data center city. Google, Tract, Switch, EdgeCore, Novva, Vantage, and PowerHouse are all operating, building, or expanding huge facilities within the Tahoe Reno Industrial Center, a business park bigger than the city of Detroit.  This story is a part of MIT Technology Review’s series “Power Hungry: AI and our energy future,” on the energy demands and carbon costs of the artificial-intelligence revolution. Meanwhile, Microsoft acquired more than 225 acres of undeveloped property within the center and an even larger plot in nearby Silver Springs, Nevada. Apple is expanding its data center, located just across the Truckee River from the industrial park. OpenAI has said it’s considering building a data center in Nevada as well. The corporate race to amass computing resources to train and run artificial intelligence models and store information in the cloud has sparked a data center boom in the desert—just far enough away from Nevada’s communities to elude wide notice and, some fear, adequate scrutiny.  Switch, a data center company based in Las Vegas, says the full build-out of its campus at the Tahoe Reno Industrial Center could exceed seven million square feet.EMILY NAJERA The full scale and potential environmental impacts of the developments aren’t known, because the footprint, energy needs, and water requirements are often closely guarded corporate secrets. Most of the companies didn’t respond to inquiries from MIT Technology Review, or declined to provide additional information about the projects.  But there’s “a whole lot of construction going on,” says Kris Thompson, who served as the longtime project manager for the industrial center before stepping down late last year. “The last number I heard was 13 million square feet under construction right now, which is massive.” Indeed, it’s the equivalent of almost five Empire State Buildings laid out flat. In addition, public filings from NV Energy, the state’s near-monopoly utility, reveal that a dozen data-center projects, mostly in this area, have requested nearly six gigawatts of electricity capacity within the next decade.  That would make the greater Reno area—the biggest little city in the world—one of the largest data-center markets around the globe. It would also require expanding the state’s power sector by about 40%, all for a single industry in an explosive growth stage that may, or may not, prove sustainable. The energy needs, in turn, suggest those projects could consume billions of gallons of water per year, according to an analysis conducted for this story.  Construction crews are busy building data centers throughout the Tahoe Reno Industrial Center.EMILY NAJERA The build-out of a dense cluster of energy and water-hungry data centers in a small stretch of the nation’s driest state, where climate change is driving up temperatures faster than anywhere else in the country, has begun to raise alarms among water experts, environmental groups, and residents. That includes members of the Pyramid Lake Paiute Tribe, whose namesake water body lies within their reservation and marks the end point of the Truckee River, the region’s main source of water. Much of Nevada has suffered through severe drought conditions for years, farmers and communities are drawing down many of the state’s groundwater reservoirs faster than they can be refilled, and global warming is sucking more and more moisture out of the region’s streams, shrubs, and soils. “Telling entities that they can come in and stick more straws in the ground for data centers is raising a lot of questions about sound management,” says Kyle Roerink, executive director of the Great Basin Water Network, a nonprofit that works to protect water resources throughout Nevada and Utah.  “We just don’t want to be in a situation where the tail is wagging the dog,” he later added, “where this demand for data centers is driving water policy.” Luring data centers In the late 1850s, the mountains southeast of Reno began enticing prospectors from across the country, who hoped to strike silver or gold in the famed Comstock Lode. But Storey County had few residents or economic prospects by the late 1990s, around the time when Don Roger Norman, a media-shy real estate speculator, spotted a new opportunity in the sagebrush-covered hills.  He began buying up tens of thousands of acres of land for tens of millions of dollars and lining up development approvals to lure industrial projects to what became the Tahoe Reno Industrial Center. His partners included Lance Gilman, a cowboy-hat-wearing real estate broker, who later bought the nearby Mustang Ranch brothel and won a seat as a county commissioner. In 1999, the county passed an ordinance that preapproves companies to develop most types of commercial and industrial projects across the business park, cutting months to years off the development process. That helped cinch deals with a flock of tenants looking to build big projects fast, including Walmart, Tesla, and Redwood Materials. Now the promise of fast permits is helping to draw data centers by the gigawatt. On a clear, cool January afternoon, Brian Armon, a commercial real estate broker who leads the industrial practices group at NAI Alliance, takes me on a tour of the projects around the region, which mostly entails driving around the business center. Lance Gilman, a local real estate broker, helped to develop the Tahoe Reno Industrial Center and land some of its largest tenants.GREGG SEGAL After pulling off Interstate 80 onto USA Parkway, he points out the cranes, earthmovers, and riprap foundations, where a variety of data centers are under construction. Deeper into the industrial park, Armon pulls up near Switch’s long, low, arched-roof facility, which sits on a terrace above cement walls and security gates. The Las Vegas–based company says the first phase of its data center campus encompasses more than a million square feet, and that the full build-out will cover seven times that space.  Over the next hill, we turn around in Google’s parking lot. Cranes, tents, framing, and construction equipment extend behind the company’s existing data center, filling much of the 1,210-acre lot that the search engine giant acquired in 2017. Last August, during an event at the University of Nevada, Reno, the company announced it would spend $400 million to expand the data center campus along with another one in Las Vegas. Thompson says that the development company, Tahoe Reno Industrial LLC, has now sold off every parcel of developable land within the park (although several lots are available for resale following the failed gamble of one crypto tenant). When I ask Armon what’s attracting all the data centers here, he starts with the fast approvals but cites a list of other lures as well: The inexpensive land. NV Energy’s willingness to strike deals to supply relatively low-cost electricity. Cool nighttime and winter temperatures, as far as American deserts go, which reduce the energy and water needs. The proximity to tech hubs such as Silicon Valley, which cuts latency for applications in which milliseconds matter. And the lack of natural disasters that could shut down the facilities, at least for the most part. “We are high in seismic activity,” he says. “But everything else is good. We’re not going to have a tornado or flood or a devastating wildfire.”Then there’s the generous tax policies. In 2023, Novva, a Utah-based data center company, announced plans to build a 300,000-square-foot facility within the industrial business park. Nevada doesn’t charge corporate income tax, and it has also enacted deep tax cuts specifically for data centers that set up shop in the state. That includes abatements of up to 75% on property tax for a decade or two—and nearly as much of a bargain on the sales and use taxes applied to equipment purchased for the facilities. Data centers don’t require many permanent workers to run the operations, but the projects have created thousands of construction jobs. They’re also helping to diversify the region’s economy beyond casinos and generating tax windfalls for the state, counties, and cities, says Jeff Sutich, executive director of the Northern Nevada Development Authority. Indeed, just three data-center projects, developed by Apple, Google, and Vantage, will produce nearly half a billion dollars in tax revenue for Nevada, even with those generous abatements, according to the Nevada Governor’s Office of Economic Development. The question is whether the benefits of data centers are worth the tradeoffs for Nevadans, given the public health costs, greenhouse-gas emissions, energy demands, and water strains. The rain shadow The Sierra Nevada’s granite peaks trace the eastern edge of California, forcing Pacific Ocean winds to rise and cool. That converts water vapor in the air into the rain and snow that fill the range’s tributaries, rivers, and lakes.  But the same meteorological phenomenon casts a rain shadow over much of neighboring Nevada, forming an arid expanse known as the Great Basin Desert. The state receives about 10 inches of precipitation a year, about a third of the national average. The Truckee River draws from the melting Sierra snowpack at the edge of Lake Tahoe, cascades down the range, and snakes through the flatlands of Reno and Sparks. It forks at the Derby Dam, a Reclamation Act project a few miles from the Tahoe Reno Industrial Center, which diverts water to a farming region further east while allowing the rest to continue north toward Pyramid Lake.  Along the way, an engineered system of reservoirs, canals, and treatment plants divert, store, and release water from the river, supplying businesses, cities, towns, and native tribes across the region. But Nevada’s population and economy are expanding, creating more demands on these resources even as they become more constrained.  The Truckee River, which originates at Lake Tahoe and terminates at Pyramid Lake, is the major water source for cities, towns, and farms across northwestern Nevada.EMILY NAJERA Throughout much of the 2020s the state has suffered through one of the hottest and most widespread droughts on record, extending two decades of abnormally dry conditions across the American West. Some scientists fear it may constitute an emerging megadrought.  About 50% of Nevada currently faces moderate to exceptional drought conditions. In addition, more than half of the state’s hundreds of groundwater basins are already “over-appropriated,” meaning the water rights on paper exceed the levels believed to be underground.  It’s not clear if climate change will increase or decrease the state’s rainfall levels, on balance. But precipitation patterns are expected to become more erratic, whiplashing between short periods of intense rainfall and more-frequent, extended, or severe droughts.  In addition, more precipitation will fall as rain rather than snow, shortening the Sierra snow season by weeks to months over the coming decades.  “In the extreme case, at the end of the century, that’s pretty much all of winter,” says Sean McKenna, executive director of hydrologic sciences at the Desert Research Institute, a research division of the Nevada System of Higher Education. That loss will undermine an essential function of the Sierra snowpack: reliably delivering water to farmers and cities when it’s most needed in the spring and summer, across both Nevada and California.  These shifting conditions will require the region to develop better ways to store, preserve, and recycle the water it does get, McKenna says. Northern Nevada’s cities, towns, and agencies will also need to carefully evaluate and plan for the collective impacts of continuing growth and development on the interconnected water system, particularly when it comes to water-hungry projects like data centers, he adds.“We can’t consider each of these as a one-off, without considering that there may be tens or dozens of these in the next 15 years,” McKenna says. Thirsty data centers Data centers suck up water in two main ways. As giant rooms of server racks process information and consume energy, they generate heat that must be shunted away to prevent malfunctions and damage to the equipment. The processing units optimized for training and running AI models often draw more electricity and, in turn, produce more heat. To keep things cool, more and more data centers have turned to liquid cooling systems that don’t need as much electricity as fan cooling or air-conditioning. These often rely on water to absorb heat and transfer it to outdoor cooling towers, where much of the moisture evaporates. Microsoft’s US data centers, for instance, could have directly evaporated nearly 185,000 gallons of “clean freshwater” in the course of training OpenAI’s GPT-3 large language model, according to a 2023 preprint study led by researchers at the University of California, Riverside. (The research has since been peer-reviewed and is awaiting publication.) What’s less appreciated, however, is that the larger data-center drain on water generally occurs indirectly, at the power plants generating extra electricity for the turbocharged AI sector. These facilities, in turn, require more water to cool down equipment, among other purposes. You have to add up both uses “to reflect the true water cost of data centers,” says Shaolei Ren, an associate professor of electrical and computer engineering at UC Riverside and coauthor of the study. Ren estimates that the 12 data-center projects listed in NV Energy’s report would directly consume between 860 million gallons and 5.7 billion gallons a year, based on the requested electricity capacity. (“Consumed” here means the water is evaporated, not merely withdrawn and returned to the engineered water system.) The indirect water drain associated with electricity generation for those operations could add up to 15.5 billion gallons, based on the average consumption of the regional grid. The exact water figures would depend on shifting climate conditions, the type of cooling systems each data center uses, and the mix of power sources that supply the facilities. Solar power, which provides roughly a quarter of Nevada’s power, requires relatively little water to operate, for instance. But natural-gas plants, which generate about 56%, withdraw 2,803 gallons per megawatt-hour on average, according to the Energy Information Administration.  Geothermal plants, which produce about 10% of the state’s electricity by cycling water through hot rocks, generally consume less water than fossil fuel plants do but often require more water than other renewables, according to some research.  But here too, the water usage varies depending on the type of geothermal plant in question. Google has lined up several deals to partially power its data centers through Fervo Energy, which has helped to commercialize an emerging approach that injects water under high pressure to fracture rock and form wells deep below the surface.  The company stresses that it doesn’t evaporate water for cooling and that it relies on brackish groundwater, not fresh water, to develop and run its plants. In a recent post, Fervo noted that its facilities consume significantly less water per megawatt-hour than coal, nuclear, or natural-gas plants do. Part of NV Energy’s proposed plan to meet growing electricity demands in Nevada includes developing several natural-gas peaking units, adding more than one gigawatt of solar power and installing another gigawatt of battery storage. It’s also forging ahead with a more than $4 billion transmission project.But the company didn’t respond to questions concerning how it will supply all of the gigawatts of additional electricity requested by data centers, if the construction of those power plants will increase consumer rates, or how much water those facilities are expected to consume. NV Energy operates a transmission line, substation, and power plant in or around the Tahoe Reno Industrial Center.EMILY NAJERA “NV Energy teams work diligently on our long-term planning to make investments in our infrastructure to serve new customers and the continued growth in the state without putting existing customers at risk,” the company said in a statement. An added challenge is that data centers need to run around the clock. That will often compel utilities to develop new electricity-generating sources that can run nonstop as well, as natural-gas, geothermal, or nuclear plants do, says Emily Grubert, an associate professor of sustainable energy policy at the University of Notre Dame, who has studied the relative water consumption of electricity sources.  “You end up with the water-intensive resources looking more important,” she adds. Even if NV Energy and the companies developing data centers do strive to power them through sources with relatively low water needs, “we only have so much ability to add six gigawatts to Nevada’s grid,” Grubert explains. “What you do will never be system-neutral, because it’s such a big number.” Securing supplies On a mid-February morning, I meet TRI’s Thompson and Don Gilman, Lance Gilman’s son, at the Storey County offices, located within the industrial center.  “I’m just a country boy who sells dirt,” Gilman, also a real estate broker, says by way of introduction.  We climb into his large SUV and drive to a reservoir in the heart of the industrial park, filled nearly to the lip.  Thompson explains that much of the water comes from an on-site treatment facility that filters waste fluids from companies in the park. In addition, tens of millions of gallons of treated effluent will also likely flow into the tank this year from the Truckee Meadows Water Authority Reclamation Facility, near the border of Reno and Sparks. That’s thanks to a 16-mile pipeline that the developers, the water authority, several tenants, and various local cities and agencies partnered to build, through a project that began in 2021. “Our general improvement district is furnishing that water to tech companies here in the park as we speak,” Thompson says. “That helps preserve the precious groundwater, so that is an environmental feather in the cap for these data centers. They are focused on environmental excellence.” The reservoir within the industrial business park provides water to data centers and other tenants.EMILY NAJERA But data centers often need drinking-quality water—not wastewater merely treated to irrigation standards—for evaporative cooling, “to avoid pipe clogs and/or bacterial growth,” the UC Riverside study notes. For instance, Google says its data centers withdrew about 7.7 billion gallons of water in 2023, and nearly 6 billion of those gallons were potable.  Tenants in the industrial park can potentially obtain access to water from the ground and the Truckee River, as well. From early on, the master developers worked hard to secure permits to water sources, since they are nearly as precious as development entitlements to companies hoping to build projects in the desert. Initially, the development company controlled a private business, the TRI Water and Sewer Company, that provided those services to the business park’s tenants, according to public documents. The company set up wells, a water tank, distribution lines, and a sewer disposal system.  But in 2000, the board of county commissioners established a general improvement district, a legal mechanism for providing municipal services in certain parts of the state, to manage electricity and then water within the center. It, in turn, hired TRI Water and Sewer as the operating company. As of its 2020 service plan, the general improvement district held permits for nearly 5,300 acre-feet of groundwater, “which can be pumped from well fields within the service area and used for new growth as it occurs.” The document lists another 2,000 acre-feet per year available from the on-site treatment facility, 1,000 from the Truckee River, and 4,000 more from the effluent pipeline.  Those figures haven’t budged much since, according to Shari Whalen, general manager of the TRI General Improvement District. All told, they add up to more than 4 billion gallons of water per year for all the needs of the industrial park and the tenants there, data centers and otherwise. Whalen says that the amount and quality of water required for any given data center depends on its design, and that those matters are worked out on a case-by-case basis.  When asked if the general improvement district is confident that it has adequate water resources to supply the needs of all the data centers under development, as well as other tenants at the industrial center, she says: “They can’t just show up and build unless they have water resources designated for their projects. We wouldn’t approve a project if it didn’t have those water resources.” Water battles As the region’s water sources have grown more constrained, lining up supplies has become an increasingly high-stakes and controversial business. More than a century ago, the US federal government filed a lawsuit against an assortment of parties pulling water from the Truckee River. The suit would eventually establish that the Pyramid Lake Paiute Tribe’s legal rights to water for irrigation superseded other claims. But the tribe has been fighting to protect those rights and increase flows from the river ever since, arguing that increasing strains on the watershed from upstream cities and businesses threaten to draw away water reserved for reservation farming, decrease lake levels, and harm native fish. The Pyramid Lake Paiute Tribe considers the water body and its fish, including the endangered cui-ui and threatened Lahontan cutthroat trout, to be essential parts of its culture, identity, and way of life. The tribe was originally named Cui-ui Ticutta, which translates to cui-ui eaters. The lake continues to provide sustenance as well as business for the tribe and its members, a number of whom operate boat charters and fishing guide services. “It’s completely tied into us as a people,” says Steven Wadsworth, chairman of the Pyramid Lake Paiute Tribe. “That is what has sustained us all this time,” he adds. “It’s just who we are. It’s part of our spiritual well-being.” Steven Wadsworth, chairman of the Pyramid Lake Paiute Tribe, fears that data centers will divert water that would otherwise reach the tribe’s namesake lake.EMILY NAJERA In recent decades, the tribe has sued the Nevada State Engineer, Washoe County, the federal government, and others for overallocating water rights and endangering the lake’s fish. It also protested the TRI General Improvement District’s applications to draw thousands of additional acre‑feet of groundwater from a basin near the business park. In 2019, the State Engineer’s office rejected those requests, concluding that the basin was already fully appropriated.  More recently, the tribe took issue with the plan to build the pipeline and divert effluent that would have flown into the Truckee, securing an agreement that required the Truckee Meadows Water Authority and other parties to add back several thousand acre‑feet of water to the river.  Whalen says she’s sensitive to Wadsworth’s concerns. But she says that the pipeline promises to keep a growing amount of treated wastewater out of the river, where it could otherwise contribute to rising salt levels in the lake. “I think that the pipeline from [the Truckee Meadows Water Authority] to our system is good for water quality in the river,” she says. “I understand philosophically the concerns about data centers, but the general improvement district is dedicated to working with everyone on the river for regional water-resource planning—and the tribe is no exception.” Water efficiency  In an email, Thompson added that he has “great respect and admiration,” for the tribe and has visited the reservation several times in an effort to help bring industrial or commercial development there.He stressed that all of the business park’s groundwater was “validated by the State Water Engineer,” and that the rights to surface water and effluent were purchased “for fair market value.” During the earlier interview at the industrial center, he and Gilman had both expressed confidence that tenants in the park have adequate water supplies, and that the businesses won’t draw water away from other areas.  “We’re in our own aquifer, our own water basin here,” Thompson said. “You put a straw in the ground here, you’re not going to pull water from Fernley or from Reno or from Silver Springs.” Gilman also stressed that data-center companies have gotten more water efficient in recent years, echoing a point others made as well. “With the newer technology, it’s not much of a worry,” says Sutich, of the Northern Nevada Development Authority. “The technology has come a long way in the last 10 years, which is really giving these guys the opportunity to be good stewards of water usage.” An aerial view of the cooling tower fans at Google’s data center in the Tahoe Reno Industrial Center.GOOGLE Indeed, Google’s existing Storey County facility is air-cooled, according to the company’s latest environmental report. The data center withdrew 1.9 million gallons in 2023 but only consumed 200,000 gallons. The rest cycles back into the water system. Google said all the data centers under construction on its campus will also “utilize air-cooling technology.” The company didn’t respond to a question about the scale of its planned expansion in the Tahoe Reno Industrial Center, and referred a question about indirect water consumption to NV Energy. The search giant has stressed that it strives to be water efficient across all of its data centers, and decides whether to use air or liquid cooling based on local supply and projected demand, among other variables.Four years ago, the company set a goal of replenishing more water than it consumes by 2030. Locally, it also committed to provide half a million dollars to the National Forest Foundation to improve the Truckee River watershed and reduce wildfire risks.  Microsoft clearly suggested in earlier news reports that the Silver Springs land it purchased around the end of 2022 would be used for a data center. NAI Alliance’s market real estate report identifies that lot, as well as the parcel Microsoft purchased within the Tahoe Reno Industrial Center, as data center sites. But the company now declines to specify what it intends to build in the region.  “While the land purchase is public knowledge, we have not disclosed specific details [of] our plans for the land or potential development timelines,” wrote Donna Whitehead, a Microsoft spokesperson, in an email.  Workers have begun grading land inside a fenced off lot within the Tahoe Reno Industrial Center.EMILY NAJERA Microsoft has also scaled down its global data-center ambitions, backing away from several projects in recent months amid shifting economic conditions, according to various reports. Whatever it ultimately does or doesn’t build, the company stresses that it has made strides to reduce water consumption in its facilities. Late last year, the company announced that it’s using “chip-level cooling solutions” in data centers, which continually circulate water between the servers and chillers through a closed loop that the company claims doesn’t lose any water to evaporation. It says the design requires only a “nominal increase” in energy compared to its data centers that rely on evaporative water cooling. Others seem to be taking a similar approach. EdgeCore also said its 900,000-square-foot data center at the Tahoe Reno Industrial Center will rely on an “air-cooled closed-loop chiller” that doesn’t require water evaporation for cooling.  But some of the companies seem to have taken steps to ensure access to significant amounts of water. Switch, for instance, took a lead role in developing the effluent pipeline. In addition, Tract, which develops campuses on which third-party data centers can build their own facilities, has said it lined up more than 1,100 acre-feet of water rights, the equivalent of nearly 360 million gallons a year.  Apple, Novva, Switch, Tract, and Vantage didn’t respond to inquiries from MIT Technology Review.  Coming conflicts  The suggestion that companies aren’t straining water supplies when they adopt air cooling is, in many cases, akin to saying they’re not responsible for the greenhouse gas produced through their power use simply because it occurs outside of their facilities. In fact, the additional water used at a power plant to meet the increased electricity needs of air cooling may exceed any gains at the data center, Ren, of UC Riverside, says. “That’s actually very likely, because it uses a lot more energy,” he adds. That means that some of the companies developing data centers in and around Storey County may simply hand off their water challenges to other parts of Nevada or neighboring states across the drying American West, depending on where and how the power is generated, Ren says.  Google has said its air-cooled facilities require about 10% more electricity, and its environmental report notes that the Storey County facility is one of its two least-energy-efficient data centers.  Pipes running along Google’s data center campus help the search company cool its servers.GOOGLE Some fear there’s also a growing mismatch between what Nevada’s water permits allow, what’s actually in the ground, and what nature will provide as climate conditions shift. Notably, the groundwater committed to all parties from the Tracy Segment basin—a long-fought-over resource that partially supplies the TRI General Improvement District—already exceeds the “perennial yield.” That refers to the maximum amount that can be drawn out every year without depleting the reservoir over the long term.“If pumping does ultimately exceed the available supply, that means there will be conflict among users,” Roerink, of the Great Basin Water Network, said in an email. “So I have to wonder: Who could be suing whom? Who could be buying out whom? How will the tribe’s rights be defended?” The Truckee Meadows Water Authority, the community-owned utility that manages the water system for Reno and Sparks, said it is planning carefully for the future and remains confident there will be “sufficient resources for decades to come,” at least within its territory east of the industrial center. Storey County, the Truckee-Carson Irrigation District, and the State Engineer’s office didn’t respond to questions or accept interview requests.  Open for business As data center proposals have begun shifting into Northern Nevada’s cities, more local residents and organizations have begun to take notice and express concerns. The regional division of the Sierra Club, for instance, recently sought to overturn the approval of Reno’s first data center, about 20 miles west of the Tahoe Reno Industrial Center.  Olivia Tanager, director of the Sierra Club’s Toiyabe Chapter, says the environmental organization was shocked by the projected electricity demands from data centers highlighted in NV Energy’s filings. Nevada’s wild horses are a common sight along USA Parkway, the highway cutting through the industrial business park. EMILY NAJERA “We have increasing interest in understanding the impact that data centers will have to our climate goals, to our grid as a whole, and certainly to our water resources,” she says. “The demands are extraordinary, and we don’t have that amount of water to toy around with.” During a city hall hearing in January that stretched late into the evening, she and a line of residents raised concerns about the water, energy, climate, and employment impacts of AI data centers. At the end, though, the city council upheld the planning department’s approval of the project, on a 5-2 vote. “Welcome to Reno,” Kathleen Taylor, Reno’s vice mayor, said before casting her vote. “We’re open for business.” Where the river ends In late March, I walk alongside Chairman Wadsworth, of the Pyramid Lake Paiute Tribe, on the shores of Pyramid Lake, watching a row of fly-fishers in waders cast their lines into the cold waters.  The lake is the largest remnant of Lake Lahontan, an Ice Age inland sea that once stretched across western Nevada and would have submerged present-day Reno. But as the climate warmed, the lapping waters retreated, etching erosional terraces into the mountainsides and exposing tufa deposits around the lake, large formations of porous rock made of calcium-carbonate. That includes the pyramid-shaped island on the eastern shore that inspired the lake’s name. A lone angler stands along the shores of Pyramid Lake. In the decades after the US Reclamation Service completed the Derby Dam in 1905, Pyramid Lake declined another 80 feet and nearby Winnemucca Lake dried up entirely.“We know what happens when water use goes unchecked,” says Wadsworth, gesturing eastward toward the range across the lake, where Winnemucca once filled the next basin over. “Because all we have to do is look over there and see a dry, barren lake bed that used to be full.”In an earlier interview, Wadsworth acknowledged that the world needs data centers. But he argued they should be spread out across the country, not densely clustered in the middle of the Nevada desert. Given the fierce competition for resources up to now, he can’t imagine how there could be enough water to meet the demands of data centers, expanding cities, and other growing businesses without straining the limited local supplies that should, by his accounting, flow to Pyramid Lake. He fears these growing pressures will force the tribe to wage new legal battles to protect their rights and preserve the lake, extending what he refers to as “a century of water wars.” “We have seen the devastating effects of what happens when you mess with Mother Nature,” Wadsworth says. “Part of our spirit has left us. And that’s why we fight so hard to hold on to what’s left.”

In the high desert east of Reno, Nevada, construction crews are flattening the golden foothills of the Virginia Range, laying the foundations of a data center city. Google, Tract, Switch, EdgeCore, Novva, Vantage, and PowerHouse are all operating, building, or expanding huge facilities within the Tahoe Reno Industrial Center, a business park bigger than the city of Detroit.  This story is a part of MIT Technology Review’s series “Power Hungry: AI and our energy future,” on the energy demands and carbon costs of the artificial-intelligence revolution. Meanwhile, Microsoft acquired more than 225 acres of undeveloped property within the center and an even larger plot in nearby Silver Springs, Nevada. Apple is expanding its data center, located just across the Truckee River from the industrial park. OpenAI has said it’s considering building a data center in Nevada as well. The corporate race to amass computing resources to train and run artificial intelligence models and store information in the cloud has sparked a data center boom in the desert—just far enough away from Nevada’s communities to elude wide notice and, some fear, adequate scrutiny.  Switch, a data center company based in Las Vegas, says the full build-out of its campus at the Tahoe Reno Industrial Center could exceed seven million square feet.EMILY NAJERA The full scale and potential environmental impacts of the developments aren’t known, because the footprint, energy needs, and water requirements are often closely guarded corporate secrets. Most of the companies didn’t respond to inquiries from MIT Technology Review, or declined to provide additional information about the projects.  But there’s “a whole lot of construction going on,” says Kris Thompson, who served as the longtime project manager for the industrial center before stepping down late last year. “The last number I heard was 13 million square feet under construction right now, which is massive.” Indeed, it’s the equivalent of almost five Empire State Buildings laid out flat. In addition, public filings from NV Energy, the state’s near-monopoly utility, reveal that a dozen data-center projects, mostly in this area, have requested nearly six gigawatts of electricity capacity within the next decade.  That would make the greater Reno area—the biggest little city in the world—one of the largest data-center markets around the globe. It would also require expanding the state’s power sector by about 40%, all for a single industry in an explosive growth stage that may, or may not, prove sustainable. The energy needs, in turn, suggest those projects could consume billions of gallons of water per year, according to an analysis conducted for this story.  Construction crews are busy building data centers throughout the Tahoe Reno Industrial Center.EMILY NAJERA The build-out of a dense cluster of energy and water-hungry data centers in a small stretch of the nation’s driest state, where climate change is driving up temperatures faster than anywhere else in the country, has begun to raise alarms among water experts, environmental groups, and residents. That includes members of the Pyramid Lake Paiute Tribe, whose namesake water body lies within their reservation and marks the end point of the Truckee River, the region’s main source of water. Much of Nevada has suffered through severe drought conditions for years, farmers and communities are drawing down many of the state’s groundwater reservoirs faster than they can be refilled, and global warming is sucking more and more moisture out of the region’s streams, shrubs, and soils. “Telling entities that they can come in and stick more straws in the ground for data centers is raising a lot of questions about sound management,” says Kyle Roerink, executive director of the Great Basin Water Network, a nonprofit that works to protect water resources throughout Nevada and Utah.  “We just don’t want to be in a situation where the tail is wagging the dog,” he later added, “where this demand for data centers is driving water policy.” Luring data centers In the late 1850s, the mountains southeast of Reno began enticing prospectors from across the country, who hoped to strike silver or gold in the famed Comstock Lode. But Storey County had few residents or economic prospects by the late 1990s, around the time when Don Roger Norman, a media-shy real estate speculator, spotted a new opportunity in the sagebrush-covered hills.  He began buying up tens of thousands of acres of land for tens of millions of dollars and lining up development approvals to lure industrial projects to what became the Tahoe Reno Industrial Center. His partners included Lance Gilman, a cowboy-hat-wearing real estate broker, who later bought the nearby Mustang Ranch brothel and won a seat as a county commissioner. In 1999, the county passed an ordinance that preapproves companies to develop most types of commercial and industrial projects across the business park, cutting months to years off the development process. That helped cinch deals with a flock of tenants looking to build big projects fast, including Walmart, Tesla, and Redwood Materials. Now the promise of fast permits is helping to draw data centers by the gigawatt. On a clear, cool January afternoon, Brian Armon, a commercial real estate broker who leads the industrial practices group at NAI Alliance, takes me on a tour of the projects around the region, which mostly entails driving around the business center. Lance Gilman, a local real estate broker, helped to develop the Tahoe Reno Industrial Center and land some of its largest tenants.GREGG SEGAL After pulling off Interstate 80 onto USA Parkway, he points out the cranes, earthmovers, and riprap foundations, where a variety of data centers are under construction. Deeper into the industrial park, Armon pulls up near Switch’s long, low, arched-roof facility, which sits on a terrace above cement walls and security gates. The Las Vegas–based company says the first phase of its data center campus encompasses more than a million square feet, and that the full build-out will cover seven times that space.  Over the next hill, we turn around in Google’s parking lot. Cranes, tents, framing, and construction equipment extend behind the company’s existing data center, filling much of the 1,210-acre lot that the search engine giant acquired in 2017. Last August, during an event at the University of Nevada, Reno, the company announced it would spend $400 million to expand the data center campus along with another one in Las Vegas. Thompson says that the development company, Tahoe Reno Industrial LLC, has now sold off every parcel of developable land within the park (although several lots are available for resale following the failed gamble of one crypto tenant). When I ask Armon what’s attracting all the data centers here, he starts with the fast approvals but cites a list of other lures as well: The inexpensive land. NV Energy’s willingness to strike deals to supply relatively low-cost electricity. Cool nighttime and winter temperatures, as far as American deserts go, which reduce the energy and water needs. The proximity to tech hubs such as Silicon Valley, which cuts latency for applications in which milliseconds matter. And the lack of natural disasters that could shut down the facilities, at least for the most part. “We are high in seismic activity,” he says. “But everything else is good. We’re not going to have a tornado or flood or a devastating wildfire.” Then there’s the generous tax policies.In 2023, Novva, a Utah-based data center company, announced plans to build a 300,000-square-foot facility within the industrial business park. Nevada doesn’t charge corporate income tax, and it has also enacted deep tax cuts specifically for data centers that set up shop in the state. That includes abatements of up to 75% on property tax for a decade or two—and nearly as much of a bargain on the sales and use taxes applied to equipment purchased for the facilities. Data centers don’t require many permanent workers to run the operations, but the projects have created thousands of construction jobs. They’re also helping to diversify the region’s economy beyond casinos and generating tax windfalls for the state, counties, and cities, says Jeff Sutich, executive director of the Northern Nevada Development Authority. Indeed, just three data-center projects, developed by Apple, Google, and Vantage, will produce nearly half a billion dollars in tax revenue for Nevada, even with those generous abatements, according to the Nevada Governor’s Office of Economic Development. The question is whether the benefits of data centers are worth the tradeoffs for Nevadans, given the public health costs, greenhouse-gas emissions, energy demands, and water strains. The rain shadow The Sierra Nevada’s granite peaks trace the eastern edge of California, forcing Pacific Ocean winds to rise and cool. That converts water vapor in the air into the rain and snow that fill the range’s tributaries, rivers, and lakes.  But the same meteorological phenomenon casts a rain shadow over much of neighboring Nevada, forming an arid expanse known as the Great Basin Desert. The state receives about 10 inches of precipitation a year, about a third of the national average. The Truckee River draws from the melting Sierra snowpack at the edge of Lake Tahoe, cascades down the range, and snakes through the flatlands of Reno and Sparks. It forks at the Derby Dam, a Reclamation Act project a few miles from the Tahoe Reno Industrial Center, which diverts water to a farming region further east while allowing the rest to continue north toward Pyramid Lake.  Along the way, an engineered system of reservoirs, canals, and treatment plants divert, store, and release water from the river, supplying businesses, cities, towns, and native tribes across the region. But Nevada’s population and economy are expanding, creating more demands on these resources even as they become more constrained.  The Truckee River, which originates at Lake Tahoe and terminates at Pyramid Lake, is the major water source for cities, towns, and farms across northwestern Nevada.EMILY NAJERA Throughout much of the 2020s the state has suffered through one of the hottest and most widespread droughts on record, extending two decades of abnormally dry conditions across the American West. Some scientists fear it may constitute an emerging megadrought.  About 50% of Nevada currently faces moderate to exceptional drought conditions. In addition, more than half of the state’s hundreds of groundwater basins are already “over-appropriated,” meaning the water rights on paper exceed the levels believed to be underground.  It’s not clear if climate change will increase or decrease the state’s rainfall levels, on balance. But precipitation patterns are expected to become more erratic, whiplashing between short periods of intense rainfall and more-frequent, extended, or severe droughts.  In addition, more precipitation will fall as rain rather than snow, shortening the Sierra snow season by weeks to months over the coming decades.  “In the extreme case, at the end of the century, that’s pretty much all of winter,” says Sean McKenna, executive director of hydrologic sciences at the Desert Research Institute, a research division of the Nevada System of Higher Education. That loss will undermine an essential function of the Sierra snowpack: reliably delivering water to farmers and cities when it’s most needed in the spring and summer, across both Nevada and California.  These shifting conditions will require the region to develop better ways to store, preserve, and recycle the water it does get, McKenna says. Northern Nevada’s cities, towns, and agencies will also need to carefully evaluate and plan for the collective impacts of continuing growth and development on the interconnected water system, particularly when it comes to water-hungry projects like data centers, he adds. “We can’t consider each of these as a one-off, without considering that there may be tens or dozens of these in the next 15 years,” McKenna says.Thirsty data centers Data centers suck up water in two main ways. As giant rooms of server racks process information and consume energy, they generate heat that must be shunted away to prevent malfunctions and damage to the equipment. The processing units optimized for training and running AI models often draw more electricity and, in turn, produce more heat. To keep things cool, more and more data centers have turned to liquid cooling systems that don’t need as much electricity as fan cooling or air-conditioning. These often rely on water to absorb heat and transfer it to outdoor cooling towers, where much of the moisture evaporates. Microsoft’s US data centers, for instance, could have directly evaporated nearly 185,000 gallons of “clean freshwater” in the course of training OpenAI’s GPT-3 large language model, according to a 2023 preprint study led by researchers at the University of California, Riverside. (The research has since been peer-reviewed and is awaiting publication.) What’s less appreciated, however, is that the larger data-center drain on water generally occurs indirectly, at the power plants generating extra electricity for the turbocharged AI sector. These facilities, in turn, require more water to cool down equipment, among other purposes. You have to add up both uses “to reflect the true water cost of data centers,” says Shaolei Ren, an associate professor of electrical and computer engineering at UC Riverside and coauthor of the study. Ren estimates that the 12 data-center projects listed in NV Energy’s report would directly consume between 860 million gallons and 5.7 billion gallons a year, based on the requested electricity capacity. (“Consumed” here means the water is evaporated, not merely withdrawn and returned to the engineered water system.) The indirect water drain associated with electricity generation for those operations could add up to 15.5 billion gallons, based on the average consumption of the regional grid. The exact water figures would depend on shifting climate conditions, the type of cooling systems each data center uses, and the mix of power sources that supply the facilities. Solar power, which provides roughly a quarter of Nevada’s power, requires relatively little water to operate, for instance. But natural-gas plants, which generate about 56%, withdraw 2,803 gallons per megawatt-hour on average, according to the Energy Information Administration.  Geothermal plants, which produce about 10% of the state’s electricity by cycling water through hot rocks, generally consume less water than fossil fuel plants do but often require more water than other renewables, according to some research.  But here too, the water usage varies depending on the type of geothermal plant in question. Google has lined up several deals to partially power its data centers through Fervo Energy, which has helped to commercialize an emerging approach that injects water under high pressure to fracture rock and form wells deep below the surface.  The company stresses that it doesn’t evaporate water for cooling and that it relies on brackish groundwater, not fresh water, to develop and run its plants. In a recent post, Fervo noted that its facilities consume significantly less water per megawatt-hour than coal, nuclear, or natural-gas plants do. Part of NV Energy’s proposed plan to meet growing electricity demands in Nevada includes developing several natural-gas peaking units, adding more than one gigawatt of solar power and installing another gigawatt of battery storage. It's also forging ahead with a more than $4 billion transmission project. But the company didn’t respond to questions concerning how it will supply all of the gigawatts of additional electricity requested by data centers, if the construction of those power plants will increase consumer rates, or how much water those facilities are expected to consume. NV Energy operates a transmission line, substation, and power plant in or around the Tahoe Reno Industrial Center.EMILY NAJERA “NV Energy teams work diligently on our long-term planning to make investments in our infrastructure to serve new customers and the continued growth in the state without putting existing customers at risk,” the company said in a statement. An added challenge is that data centers need to run around the clock. That will often compel utilities to develop new electricity-generating sources that can run nonstop as well, as natural-gas, geothermal, or nuclear plants do, says Emily Grubert, an associate professor of sustainable energy policy at the University of Notre Dame, who has studied the relative water consumption of electricity sources.  “You end up with the water-intensive resources looking more important,” she adds. Even if NV Energy and the companies developing data centers do strive to power them through sources with relatively low water needs, “we only have so much ability to add six gigawatts to Nevada’s grid,” Grubert explains. “What you do will never be system-neutral, because it’s such a big number.” Securing supplies On a mid-February morning, I meet TRI’s Thompson and Don Gilman, Lance Gilman’s son, at the Storey County offices, located within the industrial center.  “I’m just a country boy who sells dirt,” Gilman, also a real estate broker, says by way of introduction.  We climb into his large SUV and drive to a reservoir in the heart of the industrial park, filled nearly to the lip.  Thompson explains that much of the water comes from an on-site treatment facility that filters waste fluids from companies in the park. In addition, tens of millions of gallons of treated effluent will also likely flow into the tank this year from the Truckee Meadows Water Authority Reclamation Facility, near the border of Reno and Sparks. That’s thanks to a 16-mile pipeline that the developers, the water authority, several tenants, and various local cities and agencies partnered to build, through a project that began in 2021. “Our general improvement district is furnishing that water to tech companies here in the park as we speak,” Thompson says. “That helps preserve the precious groundwater, so that is an environmental feather in the cap for these data centers. They are focused on environmental excellence.” The reservoir within the industrial business park provides water to data centers and other tenants.EMILY NAJERA But data centers often need drinking-quality water—not wastewater merely treated to irrigation standards—for evaporative cooling, “to avoid pipe clogs and/or bacterial growth,” the UC Riverside study notes. For instance, Google says its data centers withdrew about 7.7 billion gallons of water in 2023, and nearly 6 billion of those gallons were potable.  Tenants in the industrial park can potentially obtain access to water from the ground and the Truckee River, as well. From early on, the master developers worked hard to secure permits to water sources, since they are nearly as precious as development entitlements to companies hoping to build projects in the desert. Initially, the development company controlled a private business, the TRI Water and Sewer Company, that provided those services to the business park’s tenants, according to public documents. The company set up wells, a water tank, distribution lines, and a sewer disposal system.  But in 2000, the board of county commissioners established a general improvement district, a legal mechanism for providing municipal services in certain parts of the state, to manage electricity and then water within the center. It, in turn, hired TRI Water and Sewer as the operating company. As of its 2020 service plan, the general improvement district held permits for nearly 5,300 acre-feet of groundwater, “which can be pumped from well fields within the service area and used for new growth as it occurs.” The document lists another 2,000 acre-feet per year available from the on-site treatment facility, 1,000 from the Truckee River, and 4,000 more from the effluent pipeline.  Those figures haven’t budged much since, according to Shari Whalen, general manager of the TRI General Improvement District. All told, they add up to more than 4 billion gallons of water per year for all the needs of the industrial park and the tenants there, data centers and otherwise. Whalen says that the amount and quality of water required for any given data center depends on its design, and that those matters are worked out on a case-by-case basis.  When asked if the general improvement district is confident that it has adequate water resources to supply the needs of all the data centers under development, as well as other tenants at the industrial center, she says: “They can’t just show up and build unless they have water resources designated for their projects. We wouldn’t approve a project if it didn’t have those water resources.” Water As the region’s water sources have grown more constrained, lining up supplies has become an increasingly high-stakes and controversial business. More than a century ago, the US federal government filed a lawsuit against an assortment of parties pulling water from the Truckee River. The suit would eventually establish that the Pyramid Lake Paiute Tribe’s legal rights to water for irrigation superseded other claims. But the tribe has been fighting to protect those rights and increase flows from the river ever since, arguing that increasing strains on the watershed from upstream cities and businesses threaten to draw away water reserved for reservation farming, decrease lake levels, and harm native fish. The Pyramid Lake Paiute Tribe considers the water body and its fish, including the endangered cui-ui and threatened Lahontan cutthroat trout, to be essential parts of its culture, identity, and way of life. The tribe was originally named Cui-ui Ticutta, which translates to cui-ui eaters. The lake continues to provide sustenance as well as business for the tribe and its members, a number of whom operate boat charters and fishing guide services. “It’s completely tied into us as a people,” says Steven Wadsworth, chairman of the Pyramid Lake Paiute Tribe. “That is what has sustained us all this time,” he adds. “It’s just who we are. It’s part of our spiritual well-being.” Steven Wadsworth, chairman of the Pyramid Lake Paiute Tribe, fears that data centers will divert water that would otherwise reach the tribe’s namesake lake.EMILY NAJERA In recent decades, the tribe has sued the Nevada State Engineer, Washoe County, the federal government, and others for overallocating water rights and endangering the lake’s fish. It also protested the TRI General Improvement District’s applications to draw thousands of additional acre‑feet of groundwater from a basin near the business park. In 2019, the State Engineer’s office rejected those requests, concluding that the basin was already fully appropriated.  More recently, the tribe took issue with the plan to build the pipeline and divert effluent that would have flown into the Truckee, securing an agreement that required the Truckee Meadows Water Authority and other parties to add back several thousand acre‑feet of water to the river.  Whalen says she’s sensitive to Wadsworth’s concerns. But she says that the pipeline promises to keep a growing amount of treated wastewater out of the river, where it could otherwise contribute to rising salt levels in the lake. “I think that the pipeline from [the Truckee Meadows Water Authority] to our system is good for water quality in the river,” she says. “I understand philosophically the concerns about data centers, but the general improvement district is dedicated to working with everyone on the river for regional water-resource planning—and the tribe is no exception.” Water efficiency  In an email, Thompson added that he has “great respect and admiration,” for the tribe and has visited the reservation several times in an effort to help bring industrial or commercial development there. He stressed that all of the business park’s groundwater was “validated by the State Water Engineer,” and that the rights to surface water and effluent were purchased “for fair market value.”During the earlier interview at the industrial center, he and Gilman had both expressed confidence that tenants in the park have adequate water supplies, and that the businesses won’t draw water away from other areas.  “We’re in our own aquifer, our own water basin here,” Thompson said. “You put a straw in the ground here, you’re not going to pull water from Fernley or from Reno or from Silver Springs.” Gilman also stressed that data-center companies have gotten more water efficient in recent years, echoing a point others made as well. “With the newer technology, it’s not much of a worry,” says Sutich, of the Northern Nevada Development Authority. “The technology has come a long way in the last 10 years, which is really giving these guys the opportunity to be good stewards of water usage.” An aerial view of the cooling tower fans at Google’s data center in the Tahoe Reno Industrial Center.GOOGLE Indeed, Google’s existing Storey County facility is air-cooled, according to the company’s latest environmental report. The data center withdrew 1.9 million gallons in 2023 but only consumed 200,000 gallons. The rest cycles back into the water system. Google said all the data centers under construction on its campus will also “utilize air-cooling technology.” The company didn’t respond to a question about the scale of its planned expansion in the Tahoe Reno Industrial Center, and referred a question about indirect water consumption to NV Energy. The search giant has stressed that it strives to be water efficient across all of its data centers, and decides whether to use air or liquid cooling based on local supply and projected demand, among other variables. Four years ago, the company set a goal of replenishing more water than it consumes by 2030. Locally, it also committed to provide half a million dollars to the National Forest Foundation to improve the Truckee River watershed and reduce wildfire risks.  Microsoft clearly suggested in earlier news reports that the Silver Springs land it purchased around the end of 2022 would be used for a data center. NAI Alliance’s market real estate report identifies that lot, as well as the parcel Microsoft purchased within the Tahoe Reno Industrial Center, as data center sites. But the company now declines to specify what it intends to build in the region.  “While the land purchase is public knowledge, we have not disclosed specific details [of] our plans for the land or potential development timelines,” wrote Donna Whitehead, a Microsoft spokesperson, in an email.  Workers have begun grading land inside a fenced off lot within the Tahoe Reno Industrial Center.EMILY NAJERA Microsoft has also scaled down its global data-center ambitions, backing away from several projects in recent months amid shifting economic conditions, according to various reports. Whatever it ultimately does or doesn’t build, the company stresses that it has made strides to reduce water consumption in its facilities. Late last year, the company announced that it’s using “chip-level cooling solutions” in data centers, which continually circulate water between the servers and chillers through a closed loop that the company claims doesn’t lose any water to evaporation. It says the design requires only a “nominal increase” in energy compared to its data centers that rely on evaporative water cooling. Others seem to be taking a similar approach. EdgeCore also said its 900,000-square-foot data center at the Tahoe Reno Industrial Center will rely on an “air-cooled closed-loop chiller” that doesn’t require water evaporation for cooling.  But some of the companies seem to have taken steps to ensure access to significant amounts of water. Switch, for instance, took a lead role in developing the effluent pipeline. In addition, Tract, which develops campuses on which third-party data centers can build their own facilities, has said it lined up more than 1,100 acre-feet of water rights, the equivalent of nearly 360 million gallons a year.  Apple, Novva, Switch, Tract, and Vantage didn’t respond to inquiries from MIT Technology Review.  Coming conflicts  The suggestion that companies aren’t straining water supplies when they adopt air cooling is, in many cases, akin to saying they’re not responsible for the greenhouse gas produced through their power use simply because it occurs outside of their facilities. In fact, the additional water used at a power plant to meet the increased electricity needs of air cooling may exceed any gains at the data center, Ren, of UC Riverside, says. “That’s actually very likely, because it uses a lot more energy,” he adds. That means that some of the companies developing data centers in and around Storey County may simply hand off their water challenges to other parts of Nevada or neighboring states across the drying American West, depending on where and how the power is generated, Ren says.  Google has said its air-cooled facilities require about 10% more electricity, and its environmental report notes that the Storey County facility is one of its two least-energy-efficient data centers.  Pipes running along Google’s data center campus help the search company cool its servers.GOOGLE Some fear there’s also a growing mismatch between what Nevada’s water permits allow, what’s actually in the ground, and what nature will provide as climate conditions shift. Notably, the groundwater committed to all parties from the Tracy Segment basin—a long-fought-over resource that partially supplies the TRI General Improvement District—already exceeds the “perennial yield.” That refers to the maximum amount that can be drawn out every year without depleting the reservoir over the long term. “If pumping does ultimately exceed the available supply, that means there will be conflict among users,” Roerink, of the Great Basin Water Network, said in an email. “So I have to wonder: Who could be suing whom? Who could be buying out whom? How will the tribe’s rights be defended?”The Truckee Meadows Water Authority, the community-owned utility that manages the water system for Reno and Sparks, said it is planning carefully for the future and remains confident there will be “sufficient resources for decades to come,” at least within its territory east of the industrial center. Storey County, the Truckee-Carson Irrigation District, and the State Engineer’s office didn’t respond to questions or accept interview requests.  Open for business As data center proposals have begun shifting into Northern Nevada’s cities, more local residents and organizations have begun to take notice and express concerns. The regional division of the Sierra Club, for instance, recently sought to overturn the approval of Reno’s first data center, about 20 miles west of the Tahoe Reno Industrial Center.  Olivia Tanager, director of the Sierra Club’s Toiyabe Chapter, says the environmental organization was shocked by the projected electricity demands from data centers highlighted in NV Energy’s filings. Nevada’s wild horses are a common sight along USA Parkway, the highway cutting through the industrial business park. EMILY NAJERA “We have increasing interest in understanding the impact that data centers will have to our climate goals, to our grid as a whole, and certainly to our water resources,” she says. “The demands are extraordinary, and we don’t have that amount of water to toy around with.” During a city hall hearing in January that stretched late into the evening, she and a line of residents raised concerns about the water, energy, climate, and employment impacts of AI data centers. At the end, though, the city council upheld the planning department’s approval of the project, on a 5-2 vote. “Welcome to Reno,” Kathleen Taylor, Reno’s vice mayor, said before casting her vote. “We’re open for business.” Where the river ends In late March, I walk alongside Chairman Wadsworth, of the Pyramid Lake Paiute Tribe, on the shores of Pyramid Lake, watching a row of fly-fishers in waders cast their lines into the cold waters.  The lake is the largest remnant of Lake Lahontan, an Ice Age inland sea that once stretched across western Nevada and would have submerged present-day Reno. But as the climate warmed, the lapping waters retreated, etching erosional terraces into the mountainsides and exposing tufa deposits around the lake, large formations of porous rock made of calcium-carbonate. That includes the pyramid-shaped island on the eastern shore that inspired the lake’s name. A lone angler stands along the shores of Pyramid Lake. In the decades after the US Reclamation Service completed the Derby Dam in 1905, Pyramid Lake declined another 80 feet and nearby Winnemucca Lake dried up entirely. “We know what happens when water use goes unchecked,” says Wadsworth, gesturing eastward toward the range across the lake, where Winnemucca once filled the next basin over. “Because all we have to do is look over there and see a dry, barren lake bed that used to be full.”In an earlier interview, Wadsworth acknowledged that the world needs data centers. But he argued they should be spread out across the country, not densely clustered in the middle of the Nevada desert.Given the fierce competition for resources up to now, he can’t imagine how there could be enough water to meet the demands of data centers, expanding cities, and other growing businesses without straining the limited local supplies that should, by his accounting, flow to Pyramid Lake. He fears these growing pressures will force the tribe to wage new legal battles to protect their rights and preserve the lake, extending what he refers to as “a century of water wars.” “We have seen the devastating effects of what happens when you mess with Mother Nature,” Wadsworth says. “Part of our spirit has left us. And that’s why we fight so hard to hold on to what’s left.”

In the high desert east of Reno, Nevada, construction crews are flattening the golden foothills of the Virginia Range, laying the foundations of a data center city. Google, Tract, Switch, EdgeCore, Novva, Vantage, and PowerHouse are all operating, building, or expanding huge facilities within the Tahoe Reno Industrial Center, a business park bigger than the city of Detroit.  This story is a part of MIT Technology Review’s series “Power Hungry: AI and our energy future,” on the energy demands and carbon costs of the artificial-intelligence revolution. Meanwhile, Microsoft acquired more than 225 acres of undeveloped property within the center and an even larger plot in nearby Silver Springs, Nevada. Apple is expanding its data center, located just across the Truckee River from the industrial park. OpenAI has said it’s considering building a data center in Nevada as well. The corporate race to amass computing resources to train and run artificial intelligence models and store information in the cloud has sparked a data center boom in the desert—just far enough away from Nevada’s communities to elude wide notice and, some fear, adequate scrutiny.  Switch, a data center company based in Las Vegas, says the full build-out of its campus at the Tahoe Reno Industrial Center could exceed seven million square feet.EMILY NAJERA The full scale and potential environmental impacts of the developments aren’t known, because the footprint, energy needs, and water requirements are often closely guarded corporate secrets. Most of the companies didn’t respond to inquiries from MIT Technology Review, or declined to provide additional information about the projects.  But there’s “a whole lot of construction going on,” says Kris Thompson, who served as the longtime project manager for the industrial center before stepping down late last year. “The last number I heard was 13 million square feet under construction right now, which is massive.” Indeed, it’s the equivalent of almost five Empire State Buildings laid out flat. In addition, public filings from NV Energy, the state’s near-monopoly utility, reveal that a dozen data-center projects, mostly in this area, have requested nearly six gigawatts of electricity capacity within the next decade.  That would make the greater Reno area—the biggest little city in the world—one of the largest data-center markets around the globe. It would also require expanding the state’s power sector by about 40%, all for a single industry in an explosive growth stage that may, or may not, prove sustainable. The energy needs, in turn, suggest those projects could consume billions of gallons of water per year, according to an analysis conducted for this story.  Construction crews are busy building data centers throughout the Tahoe Reno Industrial Center.EMILY NAJERA The build-out of a dense cluster of energy and water-hungry data centers in a small stretch of the nation’s driest state, where climate change is driving up temperatures faster than anywhere else in the country, has begun to raise alarms among water experts, environmental groups, and residents. That includes members of the Pyramid Lake Paiute Tribe, whose namesake water body lies within their reservation and marks the end point of the Truckee River, the region’s main source of water. Much of Nevada has suffered through severe drought conditions for years, farmers and communities are drawing down many of the state’s groundwater reservoirs faster than they can be refilled, and global warming is sucking more and more moisture out of the region’s streams, shrubs, and soils. “Telling entities that they can come in and stick more straws in the ground for data centers is raising a lot of questions about sound management,” says Kyle Roerink, executive director of the Great Basin Water Network, a nonprofit that works to protect water resources throughout Nevada and Utah.  “We just don’t want to be in a situation where the tail is wagging the dog,” he later added, “where this demand for data centers is driving water policy.” Luring data centers In the late 1850s, the mountains southeast of Reno began enticing prospectors from across the country, who hoped to strike silver or gold in the famed Comstock Lode. But Storey County had few residents or economic prospects by the late 1990s, around the time when Don Roger Norman, a media-shy real estate speculator, spotted a new opportunity in the sagebrush-covered hills.  He began buying up tens of thousands of acres of land for tens of millions of dollars and lining up development approvals to lure industrial projects to what became the Tahoe Reno Industrial Center. His partners included Lance Gilman, a cowboy-hat-wearing real estate broker, who later bought the nearby Mustang Ranch brothel and won a seat as a county commissioner. In 1999, the county passed an ordinance that preapproves companies to develop most types of commercial and industrial projects across the business park, cutting months to years off the development process. That helped cinch deals with a flock of tenants looking to build big projects fast, including Walmart, Tesla, and Redwood Materials. Now the promise of fast permits is helping to draw data centers by the gigawatt. On a clear, cool January afternoon, Brian Armon, a commercial real estate broker who leads the industrial practices group at NAI Alliance, takes me on a tour of the projects around the region, which mostly entails driving around the business center. Lance Gilman, a local real estate broker, helped to develop the Tahoe Reno Industrial Center and land some of its largest tenants.GREGG SEGAL After pulling off Interstate 80 onto USA Parkway, he points out the cranes, earthmovers, and riprap foundations, where a variety of data centers are under construction. Deeper into the industrial park, Armon pulls up near Switch’s long, low, arched-roof facility, which sits on a terrace above cement walls and security gates. The Las Vegas–based company says the first phase of its data center campus encompasses more than a million square feet, and that the full build-out will cover seven times that space.  Over the next hill, we turn around in Google’s parking lot. Cranes, tents, framing, and construction equipment extend behind the company’s existing data center, filling much of the 1,210-acre lot that the search engine giant acquired in 2017. Last August, during an event at the University of Nevada, Reno, the company announced it would spend $400 million to expand the data center campus along with another one in Las Vegas. Thompson says that the development company, Tahoe Reno Industrial LLC, has now sold off every parcel of developable land within the park (although several lots are available for resale following the failed gamble of one crypto tenant). When I ask Armon what’s attracting all the data centers here, he starts with the fast approvals but cites a list of other lures as well: The inexpensive land. NV Energy’s willingness to strike deals to supply relatively low-cost electricity. Cool nighttime and winter temperatures, as far as American deserts go, which reduce the energy and water needs. The proximity to tech hubs such as Silicon Valley, which cuts latency for applications in which milliseconds matter. And the lack of natural disasters that could shut down the facilities, at least for the most part. “We are high in seismic activity,” he says. “But everything else is good. We’re not going to have a tornado or flood or a devastating wildfire.” Then there’s the generous tax policies.In 2023, Novva, a Utah-based data center company, announced plans to build a 300,000-square-foot facility within the industrial business park. Nevada doesn’t charge corporate income tax, and it has also enacted deep tax cuts specifically for data centers that set up shop in the state. That includes abatements of up to 75% on property tax for a decade or two—and nearly as much of a bargain on the sales and use taxes applied to equipment purchased for the facilities. Data centers don’t require many permanent workers to run the operations, but the projects have created thousands of construction jobs. They’re also helping to diversify the region’s economy beyond casinos and generating tax windfalls for the state, counties, and cities, says Jeff Sutich, executive director of the Northern Nevada Development Authority. Indeed, just three data-center projects, developed by Apple, Google, and Vantage, will produce nearly half a billion dollars in tax revenue for Nevada, even with those generous abatements, according to the Nevada Governor’s Office of Economic Development. The question is whether the benefits of data centers are worth the tradeoffs for Nevadans, given the public health costs, greenhouse-gas emissions, energy demands, and water strains. The rain shadow The Sierra Nevada’s granite peaks trace the eastern edge of California, forcing Pacific Ocean winds to rise and cool. That converts water vapor in the air into the rain and snow that fill the range’s tributaries, rivers, and lakes.  But the same meteorological phenomenon casts a rain shadow over much of neighboring Nevada, forming an arid expanse known as the Great Basin Desert. The state receives about 10 inches of precipitation a year, about a third of the national average. The Truckee River draws from the melting Sierra snowpack at the edge of Lake Tahoe, cascades down the range, and snakes through the flatlands of Reno and Sparks. It forks at the Derby Dam, a Reclamation Act project a few miles from the Tahoe Reno Industrial Center, which diverts water to a farming region further east while allowing the rest to continue north toward Pyramid Lake.  Along the way, an engineered system of reservoirs, canals, and treatment plants divert, store, and release water from the river, supplying businesses, cities, towns, and native tribes across the region. But Nevada’s population and economy are expanding, creating more demands on these resources even as they become more constrained.  The Truckee River, which originates at Lake Tahoe and terminates at Pyramid Lake, is the major water source for cities, towns, and farms across northwestern Nevada.EMILY NAJERA Throughout much of the 2020s the state has suffered through one of the hottest and most widespread droughts on record, extending two decades of abnormally dry conditions across the American West. Some scientists fear it may constitute an emerging megadrought.  About 50% of Nevada currently faces moderate to exceptional drought conditions. In addition, more than half of the state’s hundreds of groundwater basins are already “over-appropriated,” meaning the water rights on paper exceed the levels believed to be underground.  It’s not clear if climate change will increase or decrease the state’s rainfall levels, on balance. But precipitation patterns are expected to become more erratic, whiplashing between short periods of intense rainfall and more-frequent, extended, or severe droughts.  In addition, more precipitation will fall as rain rather than snow, shortening the Sierra snow season by weeks to months over the coming decades.  “In the extreme case, at the end of the century, that’s pretty much all of winter,” says Sean McKenna, executive director of hydrologic sciences at the Desert Research Institute, a research division of the Nevada System of Higher Education. That loss will undermine an essential function of the Sierra snowpack: reliably delivering water to farmers and cities when it’s most needed in the spring and summer, across both Nevada and California.  These shifting conditions will require the region to develop better ways to store, preserve, and recycle the water it does get, McKenna says. Northern Nevada’s cities, towns, and agencies will also need to carefully evaluate and plan for the collective impacts of continuing growth and development on the interconnected water system, particularly when it comes to water-hungry projects like data centers, he adds. “We can’t consider each of these as a one-off, without considering that there may be tens or dozens of these in the next 15 years,” McKenna says.Thirsty data centers Data centers suck up water in two main ways. As giant rooms of server racks process information and consume energy, they generate heat that must be shunted away to prevent malfunctions and damage to the equipment. The processing units optimized for training and running AI models often draw more electricity and, in turn, produce more heat. To keep things cool, more and more data centers have turned to liquid cooling systems that don’t need as much electricity as fan cooling or air-conditioning. These often rely on water to absorb heat and transfer it to outdoor cooling towers, where much of the moisture evaporates. Microsoft’s US data centers, for instance, could have directly evaporated nearly 185,000 gallons of “clean freshwater” in the course of training OpenAI’s GPT-3 large language model, according to a 2023 preprint study led by researchers at the University of California, Riverside. (The research has since been peer-reviewed and is awaiting publication.) What’s less appreciated, however, is that the larger data-center drain on water generally occurs indirectly, at the power plants generating extra electricity for the turbocharged AI sector. These facilities, in turn, require more water to cool down equipment, among other purposes. You have to add up both uses “to reflect the true water cost of data centers,” says Shaolei Ren, an associate professor of electrical and computer engineering at UC Riverside and coauthor of the study. Ren estimates that the 12 data-center projects listed in NV Energy’s report would directly consume between 860 million gallons and 5.7 billion gallons a year, based on the requested electricity capacity. (“Consumed” here means the water is evaporated, not merely withdrawn and returned to the engineered water system.) The indirect water drain associated with electricity generation for those operations could add up to 15.5 billion gallons, based on the average consumption of the regional grid. The exact water figures would depend on shifting climate conditions, the type of cooling systems each data center uses, and the mix of power sources that supply the facilities. Solar power, which provides roughly a quarter of Nevada’s power, requires relatively little water to operate, for instance. But natural-gas plants, which generate about 56%, withdraw 2,803 gallons per megawatt-hour on average, according to the Energy Information Administration.  Geothermal plants, which produce about 10% of the state’s electricity by cycling water through hot rocks, generally consume less water than fossil fuel plants do but often require more water than other renewables, according to some research.  But here too, the water usage varies depending on the type of geothermal plant in question. Google has lined up several deals to partially power its data centers through Fervo Energy, which has helped to commercialize an emerging approach that injects water under high pressure to fracture rock and form wells deep below the surface.  The company stresses that it doesn’t evaporate water for cooling and that it relies on brackish groundwater, not fresh water, to develop and run its plants. In a recent post, Fervo noted that its facilities consume significantly less water per megawatt-hour than coal, nuclear, or natural-gas plants do. Part of NV Energy’s proposed plan to meet growing electricity demands in Nevada includes developing several natural-gas peaking units, adding more than one gigawatt of solar power and installing another gigawatt of battery storage. It's also forging ahead with a more than $4 billion transmission project. But the company didn’t respond to questions concerning how it will supply all of the gigawatts of additional electricity requested by data centers, if the construction of those power plants will increase consumer rates, or how much water those facilities are expected to consume. NV Energy operates a transmission line, substation, and power plant in or around the Tahoe Reno Industrial Center.EMILY NAJERA “NV Energy teams work diligently on our long-term planning to make investments in our infrastructure to serve new customers and the continued growth in the state without putting existing customers at risk,” the company said in a statement. An added challenge is that data centers need to run around the clock. That will often compel utilities to develop new electricity-generating sources that can run nonstop as well, as natural-gas, geothermal, or nuclear plants do, says Emily Grubert, an associate professor of sustainable energy policy at the University of Notre Dame, who has studied the relative water consumption of electricity sources.  “You end up with the water-intensive resources looking more important,” she adds. Even if NV Energy and the companies developing data centers do strive to power them through sources with relatively low water needs, “we only have so much ability to add six gigawatts to Nevada’s grid,” Grubert explains. “What you do will never be system-neutral, because it’s such a big number.” Securing supplies On a mid-February morning, I meet TRI’s Thompson and Don Gilman, Lance Gilman’s son, at the Storey County offices, located within the industrial center.  “I’m just a country boy who sells dirt,” Gilman, also a real estate broker, says by way of introduction.  We climb into his large SUV and drive to a reservoir in the heart of the industrial park, filled nearly to the lip.  Thompson explains that much of the water comes from an on-site treatment facility that filters waste fluids from companies in the park. In addition, tens of millions of gallons of treated effluent will also likely flow into the tank this year from the Truckee Meadows Water Authority Reclamation Facility, near the border of Reno and Sparks. That’s thanks to a 16-mile pipeline that the developers, the water authority, several tenants, and various local cities and agencies partnered to build, through a project that began in 2021. “Our general improvement district is furnishing that water to tech companies here in the park as we speak,” Thompson says. “That helps preserve the precious groundwater, so that is an environmental feather in the cap for these data centers. They are focused on environmental excellence.” The reservoir within the industrial business park provides water to data centers and other tenants.EMILY NAJERA But data centers often need drinking-quality water—not wastewater merely treated to irrigation standards—for evaporative cooling, “to avoid pipe clogs and/or bacterial growth,” the UC Riverside study notes. For instance, Google says its data centers withdrew about 7.7 billion gallons of water in 2023, and nearly 6 billion of those gallons were potable.  Tenants in the industrial park can potentially obtain access to water from the ground and the Truckee River, as well. From early on, the master developers worked hard to secure permits to water sources, since they are nearly as precious as development entitlements to companies hoping to build projects in the desert. Initially, the development company controlled a private business, the TRI Water and Sewer Company, that provided those services to the business park’s tenants, according to public documents. The company set up wells, a water tank, distribution lines, and a sewer disposal system.  But in 2000, the board of county commissioners established a general improvement district, a legal mechanism for providing municipal services in certain parts of the state, to manage electricity and then water within the center. It, in turn, hired TRI Water and Sewer as the operating company. As of its 2020 service plan, the general improvement district held permits for nearly 5,300 acre-feet of groundwater, “which can be pumped from well fields within the service area and used for new growth as it occurs.” The document lists another 2,000 acre-feet per year available from the on-site treatment facility, 1,000 from the Truckee River, and 4,000 more from the effluent pipeline.  Those figures haven’t budged much since, according to Shari Whalen, general manager of the TRI General Improvement District. All told, they add up to more than 4 billion gallons of water per year for all the needs of the industrial park and the tenants there, data centers and otherwise. Whalen says that the amount and quality of water required for any given data center depends on its design, and that those matters are worked out on a case-by-case basis.  When asked if the general improvement district is confident that it has adequate water resources to supply the needs of all the data centers under development, as well as other tenants at the industrial center, she says: “They can’t just show up and build unless they have water resources designated for their projects. We wouldn’t approve a project if it didn’t have those water resources.” Water As the region’s water sources have grown more constrained, lining up supplies has become an increasingly high-stakes and controversial business. More than a century ago, the US federal government filed a lawsuit against an assortment of parties pulling water from the Truckee River. The suit would eventually establish that the Pyramid Lake Paiute Tribe’s legal rights to water for irrigation superseded other claims. But the tribe has been fighting to protect those rights and increase flows from the river ever since, arguing that increasing strains on the watershed from upstream cities and businesses threaten to draw away water reserved for reservation farming, decrease lake levels, and harm native fish. The Pyramid Lake Paiute Tribe considers the water body and its fish, including the endangered cui-ui and threatened Lahontan cutthroat trout, to be essential parts of its culture, identity, and way of life. The tribe was originally named Cui-ui Ticutta, which translates to cui-ui eaters. The lake continues to provide sustenance as well as business for the tribe and its members, a number of whom operate boat charters and fishing guide services. “It’s completely tied into us as a people,” says Steven Wadsworth, chairman of the Pyramid Lake Paiute Tribe. “That is what has sustained us all this time,” he adds. “It’s just who we are. It’s part of our spiritual well-being.” Steven Wadsworth, chairman of the Pyramid Lake Paiute Tribe, fears that data centers will divert water that would otherwise reach the tribe’s namesake lake.EMILY NAJERA In recent decades, the tribe has sued the Nevada State Engineer, Washoe County, the federal government, and others for overallocating water rights and endangering the lake’s fish. It also protested the TRI General Improvement District’s applications to draw thousands of additional acre‑feet of groundwater from a basin near the business park. In 2019, the State Engineer’s office rejected those requests, concluding that the basin was already fully appropriated.  More recently, the tribe took issue with the plan to build the pipeline and divert effluent that would have flown into the Truckee, securing an agreement that required the Truckee Meadows Water Authority and other parties to add back several thousand acre‑feet of water to the river.  Whalen says she’s sensitive to Wadsworth’s concerns. But she says that the pipeline promises to keep a growing amount of treated wastewater out of the river, where it could otherwise contribute to rising salt levels in the lake. “I think that the pipeline from [the Truckee Meadows Water Authority] to our system is good for water quality in the river,” she says. “I understand philosophically the concerns about data centers, but the general improvement district is dedicated to working with everyone on the river for regional water-resource planning—and the tribe is no exception.” Water efficiency  In an email, Thompson added that he has “great respect and admiration,” for the tribe and has visited the reservation several times in an effort to help bring industrial or commercial development there. He stressed that all of the business park’s groundwater was “validated by the State Water Engineer,” and that the rights to surface water and effluent were purchased “for fair market value.”During the earlier interview at the industrial center, he and Gilman had both expressed confidence that tenants in the park have adequate water supplies, and that the businesses won’t draw water away from other areas.  “We’re in our own aquifer, our own water basin here,” Thompson said. “You put a straw in the ground here, you’re not going to pull water from Fernley or from Reno or from Silver Springs.” Gilman also stressed that data-center companies have gotten more water efficient in recent years, echoing a point others made as well. “With the newer technology, it’s not much of a worry,” says Sutich, of the Northern Nevada Development Authority. “The technology has come a long way in the last 10 years, which is really giving these guys the opportunity to be good stewards of water usage.” An aerial view of the cooling tower fans at Google’s data center in the Tahoe Reno Industrial Center.GOOGLE Indeed, Google’s existing Storey County facility is air-cooled, according to the company’s latest environmental report. The data center withdrew 1.9 million gallons in 2023 but only consumed 200,000 gallons. The rest cycles back into the water system. Google said all the data centers under construction on its campus will also “utilize air-cooling technology.” The company didn’t respond to a question about the scale of its planned expansion in the Tahoe Reno Industrial Center, and referred a question about indirect water consumption to NV Energy. The search giant has stressed that it strives to be water efficient across all of its data centers, and decides whether to use air or liquid cooling based on local supply and projected demand, among other variables. Four years ago, the company set a goal of replenishing more water than it consumes by 2030. Locally, it also committed to provide half a million dollars to the National Forest Foundation to improve the Truckee River watershed and reduce wildfire risks.  Microsoft clearly suggested in earlier news reports that the Silver Springs land it purchased around the end of 2022 would be used for a data center. NAI Alliance’s market real estate report identifies that lot, as well as the parcel Microsoft purchased within the Tahoe Reno Industrial Center, as data center sites. But the company now declines to specify what it intends to build in the region.  “While the land purchase is public knowledge, we have not disclosed specific details [of] our plans for the land or potential development timelines,” wrote Donna Whitehead, a Microsoft spokesperson, in an email.  Workers have begun grading land inside a fenced off lot within the Tahoe Reno Industrial Center.EMILY NAJERA Microsoft has also scaled down its global data-center ambitions, backing away from several projects in recent months amid shifting economic conditions, according to various reports. Whatever it ultimately does or doesn’t build, the company stresses that it has made strides to reduce water consumption in its facilities. Late last year, the company announced that it’s using “chip-level cooling solutions” in data centers, which continually circulate water between the servers and chillers through a closed loop that the company claims doesn’t lose any water to evaporation. It says the design requires only a “nominal increase” in energy compared to its data centers that rely on evaporative water cooling. Others seem to be taking a similar approach. EdgeCore also said its 900,000-square-foot data center at the Tahoe Reno Industrial Center will rely on an “air-cooled closed-loop chiller” that doesn’t require water evaporation for cooling.  But some of the companies seem to have taken steps to ensure access to significant amounts of water. Switch, for instance, took a lead role in developing the effluent pipeline. In addition, Tract, which develops campuses on which third-party data centers can build their own facilities, has said it lined up more than 1,100 acre-feet of water rights, the equivalent of nearly 360 million gallons a year.  Apple, Novva, Switch, Tract, and Vantage didn’t respond to inquiries from MIT Technology Review.  Coming conflicts  The suggestion that companies aren’t straining water supplies when they adopt air cooling is, in many cases, akin to saying they’re not responsible for the greenhouse gas produced through their power use simply because it occurs outside of their facilities. In fact, the additional water used at a power plant to meet the increased electricity needs of air cooling may exceed any gains at the data center, Ren, of UC Riverside, says. “That’s actually very likely, because it uses a lot more energy,” he adds. That means that some of the companies developing data centers in and around Storey County may simply hand off their water challenges to other parts of Nevada or neighboring states across the drying American West, depending on where and how the power is generated, Ren says.  Google has said its air-cooled facilities require about 10% more electricity, and its environmental report notes that the Storey County facility is one of its two least-energy-efficient data centers.  Pipes running along Google’s data center campus help the search company cool its servers.GOOGLE Some fear there’s also a growing mismatch between what Nevada’s water permits allow, what’s actually in the ground, and what nature will provide as climate conditions shift. Notably, the groundwater committed to all parties from the Tracy Segment basin—a long-fought-over resource that partially supplies the TRI General Improvement District—already exceeds the “perennial yield.” That refers to the maximum amount that can be drawn out every year without depleting the reservoir over the long term. “If pumping does ultimately exceed the available supply, that means there will be conflict among users,” Roerink, of the Great Basin Water Network, said in an email. “So I have to wonder: Who could be suing whom? Who could be buying out whom? How will the tribe’s rights be defended?”The Truckee Meadows Water Authority, the community-owned utility that manages the water system for Reno and Sparks, said it is planning carefully for the future and remains confident there will be “sufficient resources for decades to come,” at least within its territory east of the industrial center. Storey County, the Truckee-Carson Irrigation District, and the State Engineer’s office didn’t respond to questions or accept interview requests.  Open for business As data center proposals have begun shifting into Northern Nevada’s cities, more local residents and organizations have begun to take notice and express concerns. The regional division of the Sierra Club, for instance, recently sought to overturn the approval of Reno’s first data center, about 20 miles west of the Tahoe Reno Industrial Center.  Olivia Tanager, director of the Sierra Club’s Toiyabe Chapter, says the environmental organization was shocked by the projected electricity demands from data centers highlighted in NV Energy’s filings. Nevada’s wild horses are a common sight along USA Parkway, the highway cutting through the industrial business park. EMILY NAJERA “We have increasing interest in understanding the impact that data centers will have to our climate goals, to our grid as a whole, and certainly to our water resources,” she says. “The demands are extraordinary, and we don’t have that amount of water to toy around with.” During a city hall hearing in January that stretched late into the evening, she and a line of residents raised concerns about the water, energy, climate, and employment impacts of AI data centers. At the end, though, the city council upheld the planning department’s approval of the project, on a 5-2 vote. “Welcome to Reno,” Kathleen Taylor, Reno’s vice mayor, said before casting her vote. “We’re open for business.” Where the river ends In late March, I walk alongside Chairman Wadsworth, of the Pyramid Lake Paiute Tribe, on the shores of Pyramid Lake, watching a row of fly-fishers in waders cast their lines into the cold waters.  The lake is the largest remnant of Lake Lahontan, an Ice Age inland sea that once stretched across western Nevada and would have submerged present-day Reno. But as the climate warmed, the lapping waters retreated, etching erosional terraces into the mountainsides and exposing tufa deposits around the lake, large formations of porous rock made of calcium-carbonate. That includes the pyramid-shaped island on the eastern shore that inspired the lake’s name. A lone angler stands along the shores of Pyramid Lake. In the decades after the US Reclamation Service completed the Derby Dam in 1905, Pyramid Lake declined another 80 feet and nearby Winnemucca Lake dried up entirely. “We know what happens when water use goes unchecked,” says Wadsworth, gesturing eastward toward the range across the lake, where Winnemucca once filled the next basin over. “Because all we have to do is look over there and see a dry, barren lake bed that used to be full.”In an earlier interview, Wadsworth acknowledged that the world needs data centers. But he argued they should be spread out across the country, not densely clustered in the middle of the Nevada desert.Given the fierce competition for resources up to now, he can’t imagine how there could be enough water to meet the demands of data centers, expanding cities, and other growing businesses without straining the limited local supplies that should, by his accounting, flow to Pyramid Lake. He fears these growing pressures will force the tribe to wage new legal battles to protect their rights and preserve the lake, extending what he refers to as “a century of water wars.” “We have seen the devastating effects of what happens when you mess with Mother Nature,” Wadsworth says. “Part of our spirit has left us. And that’s why we fight so hard to hold on to what’s left.”

This home and gallery in Clapham, south London, reflects the owners’ vision for a versatile environment. We reworked the previously disconnected layout into an adaptable hybrid working/living condition, where everyday duties are easily integrated into the family’s lives, exploring the boundaries and flow between private and public spaces. We worked with what existed, developed an understanding of the potential to both reinvent and protect the building envelope, extending its lifespan. We provided a cost-effective and lower-carbon alternative that included the integration of the garden. The spaces were designed to allow family members to find their moments of peace and joy, whether in the gallery, the kitchen or the children’s bedrooms. The project aims to exemplify how well-planned, purpose-led design decisions can result in dynamic spaces, reflecting the young, creative family’s unique ‘living with art’ ethos and aspirations. Advertisement In the evening, the family gathers in the kitchen to cook, eat, play and unwind. Located in the basement, the open-plan area is illuminated by two bookended triangular oriel openings, bringing natural light into the lower-ground space. One is a triangular skylight, a corner for contemplation and play; the other is a door opening up to the garden outside. Amalia Skoufoglou, director, O’Sullivan Skoufoglou Architects   Project data Start on site April 2022 Completion Gross internal floor area 140m2 Construction cost £392,000 Construction cost per m2 £2,800 Architect O’Sullivan Skoufoglou Architects Client Tanya Grigoroglou and Rupert Worrall Structural engineer Entuitive Principal designer O’Sullivan Skoufoglou Architects Approved building inspector London Building Control Landscape consultant GRDN Main contractor TAT Building CAD software used Vectorworks Predicted design life 30 years   Architect’s choices  We knew from the outset that, to achieve the budgetary constraints, a lot of our usual exposing of ceiling beams or dressing of walls would not be possible. There are lots of flat plasterboard surfaces in the project and, knowing that the client wanted a lot of expression, we decided to experiment with colour and textures in the joinery. For example, a lot of experimentation and care went into the bespoke kitchen cabinetry, imported from Denmark by Brouns and Co, which was stained with linseed oil. There was no wastage in the new marble countertop, which determined the height of the splashback and the length of the units. Amalia Skoufoglou, director, O’Sullivan Skoufoglou Architects   Specification The client’s brief called for a resilient, yet playful, rich materiality that could combine with a restrained, pared-down aesthetic suited to displays of art. This meant that materials were considered at a very early point in the project. In a quest to find connections with the existing typical London stock brick, different textures and details were tested, some of which were a direct response, some of which were not. The lower ground floor, the most materially rich space, opening out onto a new garden patio, is paved in flamed granite sourced from Portugal, the most economically viable, geographically closest, natural stone that could be sourced. To provide a seamless transition, the same granite tile in a honed finish continues internally. There is an EPD-accredited green terrazzo tile in the two bookended triangles, emphasising the linearity of the space.Advertisement One of the bigger material statements on the ground floor is the fire surround, which is clad in made-to-order slabs from Granby Rock, a durable recycled terrazzo manufactured using 70 per cent recycled aggregates. Amalia Skoufoglou, director, O’Sullivan Skoufoglou Architects   Selected products Bathroom washbasin Kast Lux A1 on stand Master shower room DiscontinuedBathroom washbasin Kast Nilo Children’s bathroom kastconcretebasins.comBathroom tiles Topcer Tiles 96 × 96 × 8mm All bathrooms towerceramics.comBathroom faucets Crosswater MPro All bathrooms crosswater.co.ukLinseed oil (on birch plywood) Brouns and Co Kitchen cabinetry linseedpaint.comKitchen tap Vola 590H Kitchen vola.comTerrazzo tiles InOpera Group Pastine Verde Acido Kitchen floor inoperagroup.com Granite tile Marshalls paving Neso Kitchen and exterior patio marshalls.co.ukOak flooring Chaunceys Bristol Tectonic Throughout chauncey.co.ukIronmongery d line Arne Jacobsen Throughout dline.comFire surround Granby Rock Red Ground floor granbyworkshop.co.uk