Michael Hambrey and Jrg AleanA giant, impossible icicle. Starkly exposed mountain slopes. Billion-year-old rocks behind a lone iceberg. And the view from within a glacial tunnel.These four beautiful and moving images come from a new book, Our Frozen Planet by Michael Hambrey and Jrg Alean. It sets out to celebrate the cryosphere the collective noun that describes the worlds ice in all its forms, from glaciers and ice sheets to permafrost and snow cover.The main image shows ice that has formed around a waterfall near Giswil, Switzerland. Icicles growing from the top have fused with ice formations emerging from the bottom to create a giant ice column.AdvertisementBryce Canyon in UtahMichael Hambrey and Jrg AleanPictured above is Bryce Canyon in Utah. The direction of a slope strongly affects how snow is distributed in mountainous areas. Almost all the snow has melted on the south-facing slope of this ridge, but a substantial cover remains on the shady, north-facing left side.Nordvestfjord, in Northeast Greenland National Park,Michael Hambrey and Jrg AleanThe image above shows Nordvestfjord, in Northeast Greenland National Park, where some of the worlds oldest metamorphic rock forms a backdrop to an iceberg reflected in the deep fjords waters.Vadret da Morteratsch glacierMichael Hambrey and Jrg AleanIn Switzerlands Vadret da Morteratsch glacier (pictured above), meltwater has carved a tunnel through the snow and ice. The photo was taken from inside the tunnel in winter when no meltwater was flowing through.Topics: