Jordi Chias / Crabeater seals (Lobodon carcinophaga) resting on ice floating ice sheet, Antarctic Peninsula, Antarctica.

Stefan Christmann / Emperor penguin (Aptenodytes forsteri) breeding colony, mainly males brooding eggs, huddled together on sea ice. Atka Bay, Antarctica. June.

Sven Zacek,Sven Zacek / Dawn over frozen Lake Peipsi, with sheet ice formations caused by strong wind. Eastern Estonia, December 2012.

Sven Zacek,Sven Zacek / Ice sheets before sunrise in Estonia. December 2009.

Martha Holmes / Edge of large piece of ice sheet drifting in sea. Antarctic Peninsula. February 2008.

David Woodfall / Aerial view of pancake ice sheet cracking and melting in Hudson Bay, Manitoba, Canada, December 2004

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,...

Orsolya Haarberg / Aerial views of cracks in thin November ice on the lake Selsvatnet. Sel, Oppland, Norway.

Orsolya Haarberg / Aerial views of cracks in thin November ice on the lake Selsvatnet. Sel, Oppland, Norway.

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.

Ashley Cooper / Clear water from Dettifoss waterfall mixing with glacial meltwater of River Jokulsa a Fjollum from the Vatnajokull ice sheet. Iceland, September 2010

Ashley Cooper / Passenger from an Antarctic cruise ship amongst coastal scenery beneath Mount Walker, Paradise Bay off Graham Land on the Antarctic Peninsula.

Ashley Cooper / Tourists on beach with Mountain peaks on Joinville Island, Antarctic Peninsula.

Ashley Cooper / Gentoo penguins (Pygoscelis papua) with members of an expedition cruise ship. Curverville Island, Antarctic Peninsula.

Ashley Cooper / Gentoo penguins (Pygoscelis papua) with members of an expedition cruise ship. Curverville Island, Antarctic Peninsula

Ashley Cooper / Red algae in the snow on a receding glacier in Suspiros Bay on Joinville Island just off the Antarctic Peninsular. The peninsular is one of the fastest warming places on the planet.

Ashley Cooper / Stunning coastal scenery beneath Mount Walker, Paradise Bay off Graham Land, Antarctic Peninsula.

Ashley Cooper / Coastal scenery beneath Mount Walker, Paradise Bay off Graham Land, Antarctic Peninsula.

Ashley Cooper / Coastal scenery beneath Mount Walker, Paradise Bay off Graham Land, Antarctic Peninsula.

Ashley Cooper / Coastal scenery beneath Mount Walker, Paradise Bay off Graham Land, Antarctic Peninsula.

Ashley Cooper / Coastal scenery beneath Mount Walker, Paradise Bay off Graham Land, Antarctic Peninsula.

Ashley Cooper / Tabular iceberg off Livingstone Island, Antarctic Peninsula. February 2014.

Ashley Cooper / Receding glacier in Suspiros Bay, Joinville Island, just off the Antarctic Peninsula.

Ashley Cooper / Algae in melting snow on Joinville Island, Antarctic Peninsula, February 2014.

Ashley Cooper / Dettifoss waterfall, the largest waterfall in Europe by volume. It is 100 metres wide and takes meltwater in the river Jokulsa a Fjollum from the Vatnajokull ice sheet. Iceland. September.

Ashley Cooper / Dettifoss waterfall, the largest waterfall in Europe by volume. It is 100 metres wide and takes meltwater in the river Jokulsa a Fjollum from the Vatnajokull ice sheet. Iceland. September.

Ashley Cooper / Dettifoss waterfall, the largest waterfall in Europe by volume. It is 100 metres wide and takes meltwater in the river Jokulsa a Fjollum from the Vatnajokull ice sheet. Iceland. September.

Ashley Cooper / Dettifoss waterfall, the largest waterfall in Europe by volume. It is 100 metres wide and takes meltwater in the river Jokulsa a Fjollum from the Vatnajokull ice sheet. Iceland. September.

Ashley Cooper / Dettifoss waterfall, the largest waterfall in Europe by volume, Iit is 100 metres wide and takes meltwater in the river Jokulsa a Fjollum from the Vatnajokull ice sheet. Iceland. September.

Ashley Cooper / Dettifoss waterfall, the largest waterfall in Europe by volume. It is 100 metres wide and takes meltwater in the river Jokulsa a Fjollum from the Vatnajokull ice sheet. Iceland. September.

Ashley Cooper / Icebergs from the Jacobshavn glacier or Sermeq Kujalleq , Greenland. July 2012.

Ashley Cooper / Tourist boat trips sail through Icebergs from the Jacobshavn glacier or Sermeq Kujalleq, Greenland, July 2008.

Ashley Cooper / Icebergs from the Jacobshavn glacier or Sermeq Kujalleq, Greenland. July 2008.

Ashley Cooper / Icebergs from the Jacobshavn glacier or Sermeq Kujalleq, Greenland, July 2008.

Ashley Cooper / Inuit fishing boat sailing through Icebergs from the Jacobshavn glacier or Sermeq Kujalleq, Greenland. July 2008.

Ashley Cooper / Icebergs calved from Jacobshavn glacier or Sermeq Kujalleq, Greenland, July 2008.

Ashley Cooper / Small collapse of ice from the Russells Glacier, Kangerlussuaq, Greenland. July 2008.

Ashley Cooper / Collasing ice from the Russells Glacier, Kangerlussuaq, Greenland. July 2008.

Ashley Cooper / The Russells Glacier, Kangerlussuaq, Greenland. July 2008.

Ashley Cooper / Splashes in pool of meltwater from the Russell Glacier, Greenland, July 2008.

Ashley Cooper / The Russells Glacier and pool of meltwater at terminus, Kangerlussuaq, Greenland, July.

Ashley Cooper / Melt water from the Russells Glacier, Greenland, July 2008.

Ashley Cooper / Ice bergs and sea ice of the Greenland ice, July 2008.

Ashley Cooper / The Eqip sermia glacier that is receeding rapidly due to global warming on the west coast of Greenland.

Ashley Cooper / The Eqip sermia glacier that is receeding rapidly due to global warming on the west coast of Greenland.

Ashley Cooper / Glacier coming off the Greenland ice sheet near Camp Victor north of Ilulissat, Greenland, July 2008.

Ashley Cooper / Eqip Sermia on the west Greenland coast, showing the lateral moraine on the side of the glacier where it has receeded due to global warming. Greenland, July 2008.

Ashley Cooper / Musk Ox fleece on a bed at Camp Victor, Eqip Sermia, Greenland, July 2008. Camp Victor was the base for the French led expedition that explored the inland ice sheet in 1948 led by the French explorer...