Stefan Christmann / Emperor penguin (Aptenodytes forsteri) breeding colony, mainly males brooding eggs, huddled together on sea ice. Atka Bay, Antarctica. June.
01424424
Sven Zacek,Sven Zacek / Dawn over frozen Lake Peipsi, with sheet ice formations caused by strong wind. Eastern Estonia, December 2012.
01424389
Sven Zacek,Sven Zacek / Ice sheets before sunrise in Estonia. December 2009.
01407431
Martha Holmes / Edge of large piece of ice sheet drifting in sea. Antarctic Peninsula. February 2008.
01350122
David Woodfall / Aerial view of pancake ice sheet cracking and melting in Hudson Bay, Manitoba, Canada, December 2004
01159423
Mark Brownlow / Mark Brownlow, producer of Freshwater programme for BBC Planet Earth series, behind ice sheet, on location at Lake Baikal, world's deepest and oldest (and largest by volume) freshwater lake, Siberia,...
01619561
Stefan Christmann / Nilas, a thin sheet of ice created as the sea ice starts to form, in evening light. Scratch marks visible where sheet has moved on top of adjacent sheet. Atka Bay, Antarctica. March.
01596364
Ashley Cooper / Clear water from Dettifoss waterfall mixing with glacial meltwater of River Jokulsa a Fjollum from the Vatnajokull ice sheet. Iceland, September 2010
01592198
Ashley Cooper / Passenger from an Antarctic cruise ship amongst coastal scenery beneath Mount Walker, Paradise Bay off Graham Land on the Antarctic Peninsula.
01592196
Ashley Cooper / Tourists on beach with Mountain peaks on Joinville Island, Antarctic Peninsula.
01592181
Ashley Cooper / Gentoo penguins (Pygoscelis papua) with members of an expedition cruise ship. Curverville Island, Antarctic Peninsula.