Jim Brandenburg / Polar Bear (Ursus maritimus) jumping out of water, Ellesmere Island, Nunavut, Canada

Jim Brandenburg / Arctic Wolf (Canis lupus) leaping onto ice floe, Ellesmere Island, Nunavut, Canada

Jim Brandenburg / Arctic Wolf (Canis lupus) on ice floe, Ellesmere Island, Nunavut, Canada

Jim Brandenburg / Polar Bear (Ursus maritimus) running across ice, Ellesmere Island, Nunavut, Canada

Jim Brandenburg / Polar Bear (Ursus maritimus) running over icefield during spring thaw, Ellesmere Island, Nunavut, Canada

Jim Brandenburg / Polar Bear (Ursus maritimus) walking on ice floe, Ellesmere Island, Nunavut, Canada

Tui De Roy / Broken fast ice under midnight sun and impending storm, Edward VIII Bay, Kemp Coast, east Antarctica

Tui De Roy / Adelie Penguin (Pygoscelis adeliae) group crowding on melting summer ice floe, Possession Island, Ross Sea, Antarctica

Tui De Roy / Glacial tongue of Dugdale and Murray Glaciers descending the Admiralty Mountains into Robertson Bay, Victoria Land, Antarctica

Tui De Roy / Adelie Penguin (Pygoscelis adeliae) group on iceberg, Laurie Island, South Orkney Islands, Antarctica

Tui De Roy / Feral Goat (Capra hircus) herd, new invasion causing rapid desertification of last Giant Galapagos Tortoise stronghold, Alcedo Volcano, Isabella Island, Galapagos Islands, Ecuador

Mitsuaki Iwago / Retreating glacier, Antarctic coast facing the Ross Sea, Antarctica

Tui De Roy / Adelie Penguin (Pygoscelis adeliae) group crowding on melting summer ice floe, Possession Island, Ross Sea, Antarctica

Tui De Roy / Adelie Penguin (Pygoscelis adeliae) group crowding on melting summer ice floe, Possession Island, Ross Sea, Antarctica

Tui De Roy / Adelie Penguin (Pygoscelis adeliae) group crowding on melting summer ice floe, Possession Island, Ross Sea, Antarctica

Tui De Roy / Summer icebergs, Spitsbergen Island, Svalbard Archipelago, Norwegian Arctic

Tui De Roy / Tourists cruising Beagle Channel beneath Romanche Glacier, Patagonia, Chile

Jim Brandenburg / Arctic Wolf (Canis lupus) leaping onto ice floe, Ellesmere Island, Nunavut, Canada

Flip Nicklin / Polar Bear (Ursus maritimus) swimming, Baffin Island, Nunavut, Canada

Fred Bavendam / Staghorn Coral (Acropora cervicornis) colony with an extensive bleached area at its center, Kimbe Bay, Papua New Guinea

Robert Fulton / Aerial view of glacier near Lago Argentino, Argentina

Pete Cairns / Vapour trails left in blue sky by jet aircraft. Scotland, UK

Gertrud & Helmut Denzau / Domestic Bactrian camel {C. bactrianus} lying down to reach water at spring, Mongolia.

GRANT MCDOWELL / Dust storm preceeding thunderstorm in the Sahel, Mali NB Person watching

GRANT MCDOWELL / Flooded town, Grand Forks, North Dakota, USA. April 1997

Doug Allan / Icicles on pack ice melting, Canadian Arctic

Martha Holmes / Polar bear cub peering out from under mother on ice floe. Wager Bay, Canada Arctic, summer 1996.

David Noton / Motorway traffic on M5, UK, November 1995.

David Tipling / Traffic congestion, Beijing, China

Juan Carlos Munoz / Melting ice on Jokulsarlon beach. Southern Iceland, Europe, November 2012.

Juan Carlos Munoz / Melting ice on Jokulsarlon beach. Southern Iceland, Europe, November 2012.

Juan Carlos Munoz / Thawing ice on Jokulsarlon beach. Southern Iceland, Iceland, Europe, March 2011.

Juan Carlos Munoz / Cracks in thawing ice creating pattern on ice surface. Dyrholaey, Southern Iceland, Europe, March 2011.

Alex Hyde / Offshore windfarm, and coastal town. Colwyn Bay, Wales.

Alex Hyde / Ratcliffe-on-Soar coal-fired power station cooling towers at dusk. Nottinghamshire, UK, January 2013.

Alex Hyde / Ratcliffe-on-Soar coal-fired power station cooling towers. Nottinghamshire, UK, January 2013.

Alex Hyde / Ratcliffe-on-Soar coal-fired power station cooling towers. Nottinghamshire, UK, January 2013.

Alex Hyde / Ratcliffe-on-Soar coal-fired power station cooling towers. Nottinghamshire, UK, January 2013.

Alex Hyde / Ratcliffe-on-Soar coal-fired power station cooling towers. Nottinghamshire, UK, January 2013.

Alex Hyde / Ratcliffe-on-Soar coal-fired power station cooling towers. Nottinghamshire, UK, January 2013.

Alex Hyde / Ratcliffe-on-Soar coal-fired power station cooling towers. Nottinghamshire, UK, January 2013.

Alex Hyde / Ratcliffe-on-Soar coal-fired power station cooling towers. Nottinghamshire, UK, January 2013.

Alex Hyde / Ratcliffe-on-Soar coal-fired power station cooling towers. Nottinghamshire, UK, January 2013.

Alex Hyde / Ratcliffe-on-Soar coal-fired power station cooling towers. Nottinghamshire, UK, January 2013. Digitally stitched panorama.

Michael Quinton / Frozen lake in Copper Glacier, Alaska

Pat Tuson / Go Vegan banner at the Climate Change March London, UK

Pat Tuson / Go Vegan banner at the Climate Change March , London, UK

Oriol Alamany / Information panel with photos showing the Angel Glacier historic retreat from 1915, 1922 and 1978, Jasper National Park, Rocky Mountains, Alberta, Canada

David Woodfall / Flooding of newly built housing in the Glasdir estate, Ruthin, Vale of Clwyd, Denbighshire, Wales, UK. This is an area at risk of flooding and therefore difficult to obtain House insurance. 27/11/ 20...

David Woodfall / Members of north wales fire service with boat to rescue people affected by flooding of newly built housing in the Glasdir estate, Ruthin, Vale of Clwyd, Denbighshire, Wales, UK. This is an area at ri...

David Woodfall / Flooding of newly built housing in the Glasdir estate, Ruthin, Vale of Clwyd, Denbighshire, Wales, UK. This is an area at risk of flooding and therefore difficult to obtain House insurance. 27/11/ 20...

David Woodfall / Fire engine working to drain flooding of newly built housing in Glasdir estate, with houses for sale, Ruthin, Vale of Clwyd, Denbighshire, Wales, UK. This is an area at risk of flooding and therefore...

David Woodfall / Flooding of newly built housing in the Glasdir estate with houses for sale, Ruthin, the Vale of Clwyd, Denbighshire, Wales, UK. This is an area at risk of flooding and therefore difficult to obtain H...

Hiroya Minakuchi / Ice falling off glacier, Alaska

Eric Baccega / Crack in the pack ice, Manson Icefield peninsula and Jakeman glacier, Ellesmere Island, Nunavut, Canada, June 2012.

Eric Baccega / Pack ice, with the moutains and glacier of Brume Point in the background, Ellesmere Island, Nunavut, Canada, June 2012.

Eric Baccega / Crack in the pack ice, Manson Icefield peninsula and Jakeman glacier, Ellesmere Island, Nunavut, Canada, June 2012.

Eric Baccega / Crack in the pack ice, Manson Icefield peninsula and Jakeman glacier, Ellesmere Island, Nunavut, Canada, June 2012

Eric Baccega / Crack in the pack ice, Manson Icefield peninsula and Jakeman glacier, Ellesmere Island, Nunavut, Canada, June 2012.

Eric Baccega / Crack in the pack ice, Manson Icefield peninsula and Jakeman glacier, Ellesmere Island, Nunavut, Canada, June 2012.

Eric Baccega / Cracks in the pack ice, Manson Icefield peninsula and Jakeman glacier, Ellesmere Island, Nunavut, Canada, June 2012.

Eric Baccega / Young Inuit boy jumping over a crack on ice floe, Ellesmere Island, Nanavut, Canada, June 2012.

Eric Baccega / Two young Inuit boys jumping over a crack on ice floe, Ellesmere Island, Nanavut, Canada, June 2012.

Steven Kazlowski / Polar bear (Ursus maritimus) in sea off Bernard Spit, 1002 area of the Arctic National Wildlife Refuge, North Slope of the Brooks Range, Alaska, September 2011

Steven Kazlowski / Polar bear (Ursus maritimus) in sea off Bernard Spit, 1002 area of the Arctic National Wildlife Refuge, North Slope of the Brooks Range, Alaska, September 2011

Jean E. Roche / Aerial view of the Beauduc coast and beach, inland salt pans have been abandoned as the seawater flows onto the land more and more frequently, Salin de giraud, Camargue, Southern France

Danny Green / Polar Bears (Ursus maritimus) greeting each other, as one emerges from water onto sea ice. Svalbard, Norway, July.

Danny Green / Polar Bear (Ursus maritimus) on sea ice. Svalbard, Norway, July.

Terry Whittaker / 2020VISION / Remnant saltmarsh and coastal realignment at Abbotts Hall Farm, Essex

Terry Whittaker / 2020VISION / Remnant saltmarsh surrounded by agricultural land. Abbotts Hall Farm, Essex, UK, March 2012.

Terry Whittaker / 2020VISION / Water channels making patterns in saltmarsh, seen from the air. Abbotts Hall Farm, Essex, UK, April 2012.

Terry Whittaker / 2020VISION / Water channels making patterns in saltmarsh, seen from the air. Abbotts Hall Farm, Essex, UK, April 2012.

Terry Whittaker / 2020VISION / Water channels making patterns in saltmarsh, seen from the air. Abbotts Hall Farm, Essex, UK, April 2012.

Terry Whittaker / 2020VISION / Water channels making patterns in saltmarsh, seen from the air. Abbotts Hall Farm, Essex, UK, April 2012.

Terry Whittaker / 2020VISION / Water channels making patterns in saltmarsh, seen from the air. Abbotts Hall Farm, Essex, UK, April 2012.

Terry Whittaker / 2020VISION / Water channels making patterns in saltmarsh, seen from the air. Abbotts Hall Farm, Essex, UK, April 2012.

Terry Whittaker / 2020VISION / Water channels making patterns in saltmarsh, seen from the air. Abbotts Hall Farm, Essex, UK, April 2012.

Terry Whittaker / 2020VISION / Water channels making patterns in saltmarsh, seen from the air. Abbotts Hall Farm, Essex, UK, April 2012.

Terry Whittaker / 2020VISION / Remnant saltmarsh and grazing marsh at Old Hall Marshes. Essex, UK, March 2012.

Terry Whittaker / 2020VISION / Water channels making patterns in saltmarsh, seen from the air. Abbotts Hall Farm, Essex, UK, April 2012.

Terry Whittaker / 2020VISION / Water channels making patterns in saltmarsh, seen from the air. Abbotts Hall Farm, Essex, UK, April 2012.

Terry Whittaker / 2020VISION / Water channels making patterns in saltmarsh, seen from the air. Abbotts Hall Farm, Essex, UK, April 2012.

Terry Whittaker / 2020VISION / Water channels making patterns in saltmarsh, seen from the air. Abbotts Hall Farm, Essex, UK, April 2012.

Terry Whittaker / 2020VISION / Water channels making patterns in saltmarsh, seen from the air. Abbotts Hall Farm, Essex, UK, April 2012.

Terry Whittaker / 2020VISION / Water channels making patterns in saltmarsh, seen from the air. Abbotts Hall Farm, Essex, UK, April 2012.

Terry Whittaker / 2020VISION / Water channels making patterns in saltmarsh, seen from the air. Abbotts Hall Farm, Essex, UK, April 2012.

Terry Whittaker / 2020VISION / Water channels making patterns in saltmarsh, seen from the air. Abbotts Hall Farm, Essex, UK, April 2012.

Terry Whittaker / 2020VISION / Water channels making patterns in saltmarsh, seen from the air. Abbotts Hall Farm, Essex, UK, April 2012.

Terry Whittaker / 2020VISION / Remnant Saltmarsh and agricultural land, Abbotts Hall Farm, Essex. 2020VISION Book Plate.

Terry Whittaker / 2020VISION / Water channels making patterns in saltmarsh, seen from the air. Abbotts Hall Farm, Essex, UK, April 2012.

David Woodfall / Sand being deposited from eroded sand dune to maintain high level of beach and prevent coastal erosion of sand dunes and sea level rise on beach at Crosby, adjoining Anthony Gormley 'Another Place ' s...

David Woodfall / Sand being deposited from eroded sand dune to maintain high level of beach and prevent coastal erosion of sand dunes and sea level rise on beach at Crosby, adjoining Anthony Gormley 'Another Place ' s...

David Woodfall / Boulders placed on the beach to encourage displacement of newly created sand dune by sea and thus raising level of beach in an attempt to reduce coastal erosion and protect Hightown village. This man...

David Woodfall / Boulders placed on the beach to encourage displacement of newly created sand dune by sea and thus raising level of beach in an attempt to reduce coastal erosion and protect Hightown village. This man...

David Woodfall / Remains of submerged peat forest, 3-4,000 year old indicating a lower sea level in inter glacial period, Crosby, Merseryside, UK 2012