Floris van Breugel / Bald eagle (Haliaeetus leucocephalus) flying in front of the massive wall of ice, Margerie Glacier, Glacier Bay National Park, Alaska, USA, August 2014.
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Hougaard Malan / Large wave crashing against rock shelf. Luphathana, Pondoland, Eastern Cape, South Africa. June 2012.
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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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Paul Hobson / Silhouette of Wood mouse (Apodemus sylvaticus) on shelf in garden shed at night, Sheffield, Yorkshire, UK. British Wildlife Photography Awards (BWPA) competition 2011
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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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Nick Garbutt / Flock of Kelp / Southern black backed Gulls (Larus dominicanus) flying over iceberg. Graham Passage, Antarctic Peninsula, Antarctica. February. (digitally altered image)
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Uri Golman / Snow avalanche falling into sea, Jakobshavn, Ilulissat, Kangia, Icefjord, Greenland. October 2008.
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Sue Flood / Ross Ice Shelf, Antarctica, December 2008
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Michael Hutchinson / Perito Moreno Glacier, Los Glaciares National Park, Argentina February 2009