Sven Zacek / Broken ice covered in snow at sunset, on the shore of Lake Vortsjarv, gathered to shore by extreme winds, Estonia. December 2014.
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Olga Kamenskaya / Vehicles parked on ice on the surface of Lake Baikal, Siberia, Russia, March 2008.
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Olga Kamenskaya / Ice pile of broken shelf ice, near the shore of Lake Baikal, Siberia, Russia, March.
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Olga Kamenskaya / Clear panes of ice on Lake Baikal, Siberia, Russia, March.
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Steven Kazlowski,Steven Kazlowski / Polar bear (Ursus maritimus) juvenile spreading body weight over thin newly forming pack ice, trying not to break through, Beaufort Sea, off the 1002 area of the Arctic National Wildlife Refuge, North...
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Sven Zacek,Sven Zacek / Dawn over frozen Lake Peipsi, with sheet ice formations caused by strong wind. Eastern Estonia, December 2012.
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Mike Potts / Mendenhall Glacier in severe retreat, with blue ice indicating where the glacier has recently calved. Juneau Alaska USA, May 2010
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Flip Nicklin / Narwhal (Monodon monoceros) group in ice break, Baffin Island, Nunavut, Canada
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Ashley Cooper / Rotten sea ice off the north coast of Svalbard, Norway. July 2013
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Ashley Cooper / Rotten sea ice off the north coast of Svalbard, Norway July 2013
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Ashley Cooper / Rotten sea ice off the north coast of Svalbard, Norway July 2013
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Sven Zacek / Broken ice covered in snow at sunset, on the shore of Lake Vortsjarv, gathered to shore by extreme winds, Estonia. December 2014.
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Sven Zacek / Fresh snow on ice on the shore of Lake Vortsjarv, Estonia, December.
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Sven Zacek / Broken ice on the shore of Lake Vortsjarv, Estonia. December 2014.
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Sven Zacek / Broken ice on the shore of Lake Vortsjarv at sunset, Estonia, December.
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Sven Zacek / Broken ice on the shore of Lake Vortsjarv, gathered to the shore by extreme winds, Estonia. December 2014.
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Sergey Gorshkov / Pack ice beginning to break up on the coast of Wrangel Island, Far Eastern Russia, March 2011.
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Steven Kazlowski / Polar bear (Ursus maritimus) juvenile spreading body weight over thin newly forming pack ice, trying not to break through, Beaufort Sea, off the 1002 area of the Arctic National Wildlife Refuge, North...
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Steven Kazlowski / Polar bear (Ursus maritimus) juvenile spreading body weight over thin newly forming pack ice, trying not to break through, Beaufort Sea, off the 1002 area of the Arctic National Wildlife Refuge, North...
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Steven Kazlowski / Inupiaq subsistence whalers break open a hole in the pack ice using a harpoon along the edge of an open lead, during spring whaling season, Chukchi Sea, offshore from Barrow, Arctic coast of Alaska
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Steven Kazlowski / Inupiaq subsistence whalers paddle their umiak - or bearded seal skin boat - and break thin ice forming in the open lead, allowing for passing bowhead whales during spring whaling season. Chukchi Sea,...
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Steven Kazlowski / Inupiaq subsistence whalers get into their umiak - or bearded seal skin boat - in order to break thin ice forming in the open lead, allowing for passing bowhead whales during spring whaling season. Ch...
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Bryan and Cherry Alexander / Passengers on the bows of the "Kapitan Khlebnikov" watching the ship break ice. Weddell Sea. Antarctica, October 2006.
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Bryan and Cherry Alexander / Waves break agains the bottom of a large iceberg on a stormy day in Erebus & Terror Gulf. Antarctic Peninsula, October 2006.
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Mike Potts / Mendenhall Glacier in severe retreat, with blue ice indicating where the glacier has recently calved. Juneau Alaska USA, May 2010
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Mike Potts / Mendenhall Glacier in severe retreat, with blue ice indicating where the glacier has recently calved. Juneau Alaska USA, May 2010
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Mike Potts / Mendenhall Glacier in severe retreat, with blue ice indicating where the glacier has recently calved. Juneau Alaska USA, May 2010
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Mike Potts / Mendenhall Glacier in severe retreat, with blue ice indicating where the glacier has recently calved. Juneau Alaska USA, May 2010
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Mike Potts / Mendenhall Glacier in severe retreat, with blue ice indicating where the glacier has recently calved. Juneau Alaska USA, May 2010
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Mike Potts / Mendenhall Glacier in severe retreat, with blue ice indicating where the glacier has recently calved. Juneau Alaska USA, May 2010
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Mike Potts / Mendenhall Glacier in severe retreat, with blue ice indicating where the glacier has recently calved. Juneau Alaska USA, May 2010
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Bryan and Cherry Alexander / Inuit hunters and Huskies (Canis familiaris) stopping for break on way to floe edge. Northwest Greenland, 1977.
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Bryan and Cherry Alexander / Inuit hunters having break after butchering a Narwhal (Monodon monoceros) on sea ice. Qaanaaq, Northwest Greenland.
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Steven Kazlowski / Landscape of sea ice flowing through an open lead in the pack ice. This is potentially dangerous for Inupiaq whalers and hunters. If the ice should push up against the main pack, sections may break of...
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Steven Kazlowski / Landscape of sea ice flowing through an open lead in the pack ice. This is potentially dangerous for Inupiaq whalers and hunters. If the ice should push up against the main pack, sections may break of...
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Bryan and Cherry Alexander / Inuit hunters with dog sleds taking break on sea ice at Cape York, Northwest Greenland, 1980.
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Michio Hoshino / Harp Seal (Phoca groenlandicus) pup near opening in the ice, Canada
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Michio Hoshino / Harp Seal (Phoca groenlandicus) group near opening in the ice, Canada
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Flip Nicklin / Inuits testing ice strength, Arctic Bay, Baffin Island, Canada
Suzi Eszterhas / Hudson Bay in spring showing ice break-up, Churchill, Manitoba, Canada
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Suzi Eszterhas / Hudson Bay in spring showing ice break-up, Churchill, Manitoba, Canada
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Steven Kazlowski / Polar bear {Ursus maritimus} jumping, trying to break a hole in pack ice, Coastal plain of the Arctic National Wildlife Refuge, Alaska.
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Steven Kazlowski / Polar bear {Ursus maritimus} cub jumping, trying to break a hole in pack ice, Coastal plain of the Arctic National Wildlife Refuge, Alaska.
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Matthias Breiter / Pack ice floes at sunset on Hudson Bay during break-up, Churchill, Manitoba, Canada
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Jim Brandenburg / Pressure ridges and lead in Arctic Ocean, Canada
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Tui De Roy / Tabular iceberg with broken fast ice, Prince Olav Coast, East Antarctica
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Jim Brandenburg / Aerial view of pressure ridges and lead in ice, Arctic Ocean, Arctic
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Jim Brandenburg / Pressure ridges and lead in Arctic Ocean, Arctic
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Tui De Roy / Sea ice break-up, aerial view, Transantarctic Mountains, New Harbour, McMurdo Sound, Ross Sea, Antarctica
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Michio Hoshino / Polar Bear (Ursus maritimus) family waiting for seals near break in pack ice, Churchill, Manitoba, Canada
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Flip Nicklin / Beluga (Delphinapterus leucas) whale, group in ice break, Lancaster Sound, Nunavut, Canada
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Jim Brandenburg / Pressure ridges and cracks in pack ice, Arctic Ocean
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Jim Brandenburg / Pack ice, Arctic Ocean, North Pole, Arctic
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Norbert Wu / Iceberg among splitting sheets of ice, ice floes break off from ice edge in summer, McMurdo Sound, Antarctica
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Flip Nicklin / Narwhal (Monodon monoceros) group in ice break, Baffin Island, Nunavut, Canada
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Flip Nicklin / Narwhal (Monodon monoceros) group in ice break
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Jenny E. Ross / Polar bear cub (Ursus maritimus) resting next to mother as they take a break from traveling on the sea ice. Wapusk National Park, Hudson Bay, Manitoba, Canada
