Andy Rouse / Polar Bear (Ursus maritimus) portrait in sea-ice landscape. Wide angle / fish-eye shot. Svalbard, Norway, September.

Ole Jorgen Liodden / Ice cliff of the Austfonna ice cap with melt water and ice crashing down to the sea, Svalbard, Norway, July 2012.

Floris van Breugel / Ice cave with melt water running through, Mendenhall Glacier, Juneau, Alaska, USA, August 2014.

Sven Zacek / Vahandu River in spate after snow melt. Southern Estonia, February 2013.

Erlend Haarberg / Aerial view. Rivulets at the Langjkull glacier. Iceland. September 2010

Brent Stephenson / Huge iceberg with streaked sky under expansive open sky. Drake Passage, near the South Shetland Islands, Antarctica, December.

Andy Rouse / Ice cliff and waterfall catching evening light. Austfonna Polar Ice Cap, Svalbard, Norway, August 2011.

Matthias Breiter / Meltwater lakes on Hubbard Glacier, Wrangell-St. Elias National Park, Alaska

Inaki Relanzon / Blue ice melt pool in snow near the peak of La Munia Circo. The Pyrenees, Aragon, Spain, May 2011.

Doug Allan / Icicles on pack ice melting, Canadian Arctic

Milan Radisics / Aerial tracking shot looking down on the melting remnants of the collapsing Svinafellsjokull glacier and melt lake, Iceland, August 2018.

Franco Banfi / Guide waiting on iceberg for divers exploring Greenland Sea following spring ice melt. Tasiilaq, East Greenland. April 2018.