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Climber climbing out of ice cave
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Glacial ice formations. Close-up of ice crystals in a melt-water pond on the Forno Glacier, Switzerland.
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Ice on the Elbe river. View across the frozen surface of the Elbe river at sunset. Photographed in Hamburg, Germany.
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Chinstrap penguins (Pygoscelis antarctica) on brash ice (floating ice fragments). Chinstrap penguins live and breed in large colonies. They stand about 70 centimetres tall and weigh about 3.5 to 5 kilograms. Their main predator is the leopard seal. Chicks and eggs are preyed on by sheathbills and brown skuas. Chinstrap penguins feed mainly on krill and small fish. They inhabit the Antarctic peninsula and nearby islands, and are sometimes found on large icebergs in the open ocean. Photographed in Cumberland West Bay, South Georgia Island.
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Melting Arctic ice, Lancaster Sound, Nunavut, Canada. During spring, the sun, which shines for up to 24-hours a day, melts the ice. In recent years, the effects of global warming have caused sea ice to melt earlier in the season and glaciers to recede.