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

Merryn Thomas / Kettle plugged in on kitchen surface, UK, October 2011.

Ernie Janes / Exposed tree roots and eroded coastline, due to rising sea levels, Andaman Sea, Gulf of Thailand, 2011

Terry Whittaker / 2020VISION / 2020VISION Young Champion Oliver Creamer photographing established saltmarsh, Abbotts Hall Farm Nature Reserve, Essex, England, UK

Terry Whittaker / 2020VISION / An intertidal creek at low tide, part of the regenerated saltmarsh landscape around Abbots Hall Farm Nature Reserve, providing both a rich wildlife habitat and greater flood protection from sea level...

Terry Whittaker / 2020VISION / View of a breached sea wall, with established saltmarsh on right and regenerating habitat on left, such breaches are purposefully made and are part of the regeneration of saltmarsh landscape, providin...

Terry Whittaker / 2020VISION / Saltmarsh at twilight, with lights of Bradwell-on-Sea in the background, Abbotts Hall Farm Nature Reserve, Essex, England, UK, July 2011

Terry Whittaker / 2020VISION / Common glasswort (Salicornia europaea) growing on regenerated saltmarsh habitat, Abbotts Hall Farm Nature Reserve, Essex, England, UK, July 2011

Terry Whittaker / 2020VISION / Common sea lavender (Limonium vulgare) and Common glasswort (Salicornia europaea) on saltmarsh, Abbotts Hall Farm Nature Reserve, Essex, England, UK

Terry Whittaker / 2020VISION / View of regenerated saltmarsh landscape around Abbots Hall Farm Nature Reserve, providing both a rich wildlife habitat and greater flood protection from sea level rise, Essex, England, UK, July 2011

Terry Whittaker / 2020VISION / Tide rushing through a purposefully made breach in a sea wall, such breaches are part of the regeneration of saltmarsh landscape, providing both a rich wildlife habitat and greater flood protection fr...

Terry Whittaker / 2020VISION / Landscape showing eroding saltmarsh against a sea wall, the majority of saltmarsh habitat that is lost in the UK is caused by similar 'hard' coastal defences preventing the landward migration of saltm...

Terry Whittaker / 2020VISION / Landscape showing eroding saltmarsh against a sea wall, the majority of saltmarsh habitat that is lost in the UK is caused by similar 'hard' coastal defences preventing the landward migration of saltm...

Terry Whittaker / 2020VISION / View of regenerated saltmarsh landscape around Abbots Hall Farm Nature Reserve at high tide, providing both a rich wildlife habitat and greater flood protection from sea level rise, Essex, England, UK...

Terry Whittaker / 2020VISION / View of regenerated saltmarsh landscape around Abbots Hall Farm Nature Reserve at high tide, providing both a rich wildlife habitat and greater flood protection from sea level rise, Essex, England, UK...

Terry Whittaker / 2020VISION / View of regenerated saltmarsh landscape around Abbots Hall Farm Nature Reserve at high tide, providing both a rich wildlife habitat and greater flood protection from sea level rise, Essex, England, UK...

Terry Whittaker / 2020VISION / View of regenerated saltmarsh landscape around Abbots Hall Farm Nature Reserve at high tide, providing both a rich wildlife habitat and greater flood protection from sea level rise, Essex, England, UK...

Terry Whittaker / 2020VISION / View of regenerated saltmarsh landscape around Abbots Hall Farm Nature Reserve at high tide, providing both a rich wildlife habitat and greater flood protection from sea level rise, with rainbow, Esse...

Brent Stephenson / Icicles hanging from a large iceberg. Cierva Cove, Antarctic Peninsula, Antarctica, January.

Brent Stephenson / Windows in an iceberg at the 'iceberg graveyard'. Near Pleneau Island, Antarctic Peninsula, Antarctica, January.

Brent Stephenson / Group of Crabeater Seals (Lobodon carcinophaga) hauled out on a small piece of ice. Lemaire Channel, Antarctic Peninsula, Antarctica, January.

Brent Stephenson / Face of a huge glacier with massive crevasses. Neko Harbour, Antarctic Peninsula, Antarctica, January.

Brent Stephenson / Large iceberg with scalloping on the face. Paradise Bay, Antarctic Peninsula, Antarctica, December.

Brent Stephenson / Chunk of ice hanging off the front of a glacier. Near Paradise Bay, Antarctic Peninsula, Antarctica, December.

Brent Stephenson / Large grounded iceberg with grooved vertical channels. Half Moon Island, Antarctic Peninsula, Antarctica, December.

Brent Stephenson / A large hole in an iceberg with icicles hanging. Yalour Islands, Antarctic Peninsula, Antarctica, December.

Brent Stephenson / A large crack in an iceberg being lit by deep blue light filtering through the berg. Yalour Islands, Antarctic Peninsula, Antarctica, December.

Brent Stephenson / Huge iceberg with group of Chinstrap Penguins (Pygoscelis antarctica) close to the water. Drake Passage, near the South Shetland Islands, Antarctica, December.

Brent Stephenson / Iceberg, Drake Passage, near the South Shetland Islands, Antarctica, December.

Brent Stephenson / Iceberg with vertical eroded channels. Cuverville Island, Antarctic Peninsula, Antarctica, December.

Brent Stephenson / Icicles hanging from a large iceberg. Cierva Cove, Antarctic Peninsula, Antarctica, January.

Ingo Arndt / Leopard Seal (Hydrurga leptonyx) resting on ice floe, Cumberland East Bay, South Georgia Island

Andy Rouse / Icebergs against dusky sunset sky. Svalbard, Norway, August 2011.

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

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

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

Rob Jordan / 2020VISION / Scientist, Alona Armstrong, carrying out fieldwork on peatland carbon capture at Moorhouse NNR, Upper Teesdale, County Durham, UK, May 2011, model released

Rob Jordan / 2020VISION / Scientist, Alona Armstrong, carrying out fieldwork on peatland carbon capture at Moorhouse NNR, Upper Teesdale, County Durham, UK, May 2011, model released

Rob Jordan / 2020VISION / Scientist, Alona Armstrong, carrying out fieldwork on peatland carbon capture at Moorhouse NNR, Upper Teesdale, County Durham, UK, May 2011, model released

Rob Jordan / 2020VISION / Scientist, Alona Armstrong, carrying out fieldwork on peatland carbon capture at Moorhouse NNR, Upper Teesdale, County Durham, UK, May 2011, model released

Rob Jordan / 2020VISION / Scientist, Mike Whitfield, carrying out fieldwork on peatland carbon capture at Moorhouse NNR, Upper Teesdale, County Durham, UK, May 2011, model released

Rob Jordan / 2020VISION / Scientist, Mike Whitfield, carrying out fieldwork on peatland carbon capture at Moorhouse NNR, Upper Teesdale, County Durham, UK, May 2011, model released

Rob Jordan / 2020VISION / Scientist, Mike Whitfield, carrying out fieldwork on peatland carbon capture at Moorhouse NNR, Upper Teesdale, County Durham, UK, May 2011, Model released

Rob Jordan / 2020VISION / Equipment used in fieldwork on peatland carbon capture at Moorhouse NNR, Upper Teesdale, County Durham, UK, May 2011, model released

Rob Jordan / 2020VISION / Scientists, Alona Armstrong and Mike Whitfield, carrying out fieldwork on peatland carbon capture at Moorhouse NNR, Upper Teesdale, County Durham, UK, May 2011, model released

Rob Jordan / 2020VISION / Scientist, Alona Armstrong, carrying out fieldwork on peatland carbon capture at Moorhouse NNR, Upper Teesdale, County Durham, UK, May 2011, model released

Rob Jordan / 2020VISION / Scientist, Mike Whitfield, carrying out fieldwork on peatland carbon capture at Moorhouse NNR, Upper Teesdale, County Durham, UK, May 2011, model released

Rob Jordan / 2020VISION / Scientist, Mike Whitfield, carrying out fieldwork on peatland carbon capture at Moorhouse NNR, Upper Teesdale, County Durham, UK, May 2011, model released

Rob Jordan / 2020VISION / Scientist, Mike Whitfield, carrying out fieldwork on peatland carbon capture at Moorhouse NNR, Upper Teesdale, County Durham, UK, May 2011, model released

Rob Jordan / 2020VISION / Scientist, Mike Whitfield, carrying out fieldwork on peatland carbon capture at Moorhouse NNR, Upper Teesdale, County Durham, UK, May 2011, model released

Andy Rouse / Polar Bear (Ursus maritimus) in pack ice landscape. Svalbard, Norway, September.

Andy Rouse / Polar Bear (Ursus maritimus) on pack ice next to tourist icebreaker ship. Svalbard, Norway, September.

Andy Rouse / Polar Bear (Ursus maritimus) resting on pack ice. Svalbard, Norway, August.

Andy Rouse / Polar Bear (Ursus maritimus) resting on pack ice. Svalbard, Norway, August.

Ole Jorgen Liodden / Polar Bear (Ursus maritimus) in arctic ice floe landscape. Nordaustlandet, Svalbard.

Ole Jorgen Liodden / Polar Bear (Ursus maritimus) swimming low in the water. Spitsbergen, Svalbard, July.

Ole Jorgen Liodden / Polar Bear (Ursus maritimus) on broken sea-ice. Svalbard, July.

Ole Jorgen Liodden / Polar Bear (Ursus maritimus) walking in vast in thawing sea-ice landscape. Spitsbergen, Svalbard, August.

Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor) and Remora. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperatu...

Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor). The biggest fish in the world has only started to visit the Azores in the past three years due to water temperature rise. Sa...

Nuno Sa / Whale Shark (Rhincodon typus) accompanied by divers. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperature rise. Santa Maria Island, Azore...

Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor) and Remora. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperatu...

Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor). The biggest fish in the world has only started to visit the Azores in the past three years due to water temperature rise. Sa...

Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor). The biggest fish in the world has only started to visit the Azores in the past three years due to water temperature rise. Sa...

Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor) and Remora. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperatu...

Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor) and Remora. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperatu...

Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor) and Remora. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperatu...

Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor) and Remora. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperatu...

Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor) and Remora. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperatu...

Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor). The biggest fish in the world has only started to visit the Azores in the past three years due to water temperature rise. Sa...

Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor). The biggest fish in the world has only started to visit the Azores in the past three years due to water temperature rise. Sa...

Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor) and Remora. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperatu...

Steven Kazlowski / Crosses, marking grave sites at a cemetery in the Inupiaq village of Point Lay, slump from melting permafrost, along the arctic coast of Alaska, USA, June 2011

Niall Benvie / Snow man beside a spoof endangered species sign, Angus, Scotland, UK, January 2010

Niall Benvie / Snow man beside a spoof endangered species sign, Angus, Scotland, UK, January 2010

Georgette Douwma / Pink Anemonefish (Amphiprion perideraion) with partially bleached Magnificent Anemone (Heteractis magnifica). Bunaken National Park, North Sulawesi, Indonesia.

Georgette Douwma / Clark's Anemonefish (Amphiprion clarkii) in Bubble Tip Anemone (Entacmaea quadricolor). The tentacles are usually a dull brown, but this anemone is partially bleached and has lost most of the endosymb...

Georgette Douwma / Red and Black Anemonefish (Amphiprion melanopus) with bleached host anemone. The tentacles of the anemone are usually a dull brown, but this anemone is bleached and has lost most of its endosymbiotic...

Georgette Douwma / Anemone Shrimp (Thor amboinensis) in bleached anemone. Manado, North Sulawesi, Indonesia.

Georgette Douwma / Pink Anemonefish (Amphiprion perideraion) in bleached anemone. Anemone (and coral) bleaching results when the symbiotic zooxanthellae (single-celled algae) are released from the original host coral or...

Georgette Douwma / Pink Anemonefish (Amphiprion perideraion) with bleached Magnificent Anemone (Heteractis magnifica). Bunaken National Park, North Sulawesi, Indonesia.

Doug Perrine / Greater crested / Swift tern (Thalasseus / Sterna bergii) large breeding colony on shoreline, rising spring tide floods across the cay, threatening the breeding colonies, Turu Cay, Torres Straits, Que...

Doug Perrine / Greater crested / Swift tern (Thalasseus / Sterna bergii) large breeding colony on shoreline, rising spring tide floods across the cay, threatening the breeding colonies, Turu Cay, Torres Straits, Que...

Doug Perrine / Greater crested / Swift tern (Thalasseus / Sterna bergii) chicks starting to swim across a pond formed as rising tide floods the interior of Turu Cay, Torres Straits, Queensland, Australia. October....

Bryan and Cherry Alexander / Bright blue ice at the end of a tidewater glacier where ice has recently fallen. Kongsbreen, Kongsfjord, Spitsbergen, Svalbard, Norway, June 2008.

Bryan and Cherry Alexander / Bright blue ice at the end of a tidewater glacier where ice has recently fallen. Kongsbreen, Kongsfjord, Spitsbergen, Svalbard, Norway, June 2008.

Bryan and Cherry Alexander / Receding ice cap and glaciers on the coast of Northwest Greenland, September 2008.

Bryan and Cherry Alexander / Drygalski Glacier, which receded 300 metres between November 2008 and 2009. South Georgia, 2009.

Bryan and Cherry Alexander / Drygalski Glacier, which receded 300 metres between November 2008 and 2009. South Georgia, 2009.

Bryan and Cherry Alexander / Nacreous / polar stratospheric clouds. Believed to be ice and Nitric acid, these react to produce clorine & bromine, from CFCs, which directly destroy ozone molecules. East Greenland, September 2005.

Bryan and Cherry Alexander / 11th Grade Inuit students search the internet for information on climate change during a computer class at the school in Pangnirtung. Nunavut, Canada, April 2008.

Bryan and Cherry Alexander / Icicles hanging from an undercut iceberg by the shore of Snow Hill Island, Antarctica, October 2006.

Bryan and Cherry Alexander / Icicles hanging from a ledge on an iceberg, Antarctica, October 2006.

Bryan and Cherry Alexander / Icicles hang off a thawing iceberg in Antarctica, October 2006.

Juergen Freund / Green rice fields with barren mountain background. The mountain soil is too acidic to allow reforestation. Sablayan, Philippines, March 2010.

Juergen Freund / One metre of mud has washed into this now abandoned local church in Barangay Victoria. The mud has cracked in the dry summer heat, turning to fine dust that has permeated everything. Mindoro, Philippi...