Steven Kazlowski / Polar bear (Ursus maritimus) sow with cub swimming towards ice on the Chukchi Sea, off the National Petroleum Reserves, Alaska
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Tim Laman / Aerial view of fractured pancake ice in Battleship Cove, Massachusetts, USA, January
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David Woodfall / Aerial view of pancake ice sheet melting in Hudson Bay, Manitoba, Canada, December 2004
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David Woodfall / Aerial view of pancake ice sheet melting in Hudson Bay, Manitoba, Canada, December 2004
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Shattil & Rozinski / Aerial view of gas drilling site, Pinedale, Red Desert, Wyoming, USA
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Shattil & Rozinski / Kawuneeche Valley in fog, Rocky Mountain NP, Colorada, USA
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Shattil & Rozinski / Elk {Cervus canadensis} herd on snow on alpine tundra, Colorado, USA
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Steven Kazlowski / Snow geese (Chen caerulescens) adults and goslings during summer molt, near the Colville River delta, Beaufort Sea, Arctic Alaska
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Steven Kazlowski / Walrus (Odobenus rosmarus) herd resting on and swimming around a chunk of pack ice during the spring breakup. Chukchi Sea, off the National Petroleum Reserves, Alaska
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Steven Kazlowski / Walrus (Odobenus rosmarus) herd swimming in the Chukchi Sea, off the National Petroleum Reserves, Alaska
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Steven Kazlowski / Walrus (Odobenus rosmarus) herd resting on and swimming around a chunk of pack ice during the spring breakup. Chukchi Sea, off the National Petroleum Reserves, Alaska
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Steven Kazlowski / Walrus (Odobenus rosmarus) herd resting on and swimming around a chunk of pack ice during the spring breakup. Chukchi Sea, off the National Petroleum Reserves, Alaska
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Steven Kazlowski / Polar bear (Ursus maritimus) sow and cub walking on multi-layer ice (freshwater pans formed over the years where the salt is squeezed out of the ice) on the Chukchi Sea, off the National Petroleum Res...
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Steven Kazlowski / Walrus (Odobenus rosmarus) herd resting on and swimming around a chunk of pack ice during the spring breakup. Chukchi Sea, off the National Petroleum Reserves, Alaska
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Steven Kazlowski / Walrus (Odobenus rosmarus) herd resting on and swimming around chunks of pack ice during the spring breakup. Chukchi Sea, off the National Petroleum Reserves, Alaska
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Steven Kazlowski / Polar bear (Ursus maritimus) sow and cub walking on multi-layer ice (freshwater pans formed over the years where the salt is squeezed out of the ice) on the Chukchi Sea, off the National Petroleum Res...
01193996
Steven Kazlowski / Walrus (Odobenus rosmarus) herd resting on and swimming around a chunk of pack ice during the spring breakup. Chukchi Sea, off the National Petroleum Reserves, Alaska
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Steven Kazlowski / Walrus (Odobenus rosmarus) herd resting on and swimming around chunks of pack ice during the spring breakup. Chukchi Sea, off the National Petroleum Reserves, Alaska
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Shattil & Rozinski / Aerial view of Naval Petroleum Reserves, Kern County, California, USA, 2005
