Elon Musk (left) heads the Department of Government Efficiency task force created by US president Donald Trump (right)Brandon Bell/Getty ImagesClimate scientists are increasingly alarmed about losing access to essential data about the planet as the administration of US president Donald Trump pursues an overhaul of US federal agencies. This includes an effort to remove references to climate change from government websites.On 5 February, the website for the Global Monitoring Laboratory at the US National Oceanic and Atmospheric Administration (NOAA) went offline. It