Ancient fireplace stones, site of a 12th century camp of Ghengis Khan and his troops, Altyn-Emel National Park, Almaty region, Kazakhstan, Central Asia, Asia

The remains of the camp where Fridtjof Nansen over-wintered with Hjalmar Johansen in 1895-96, Franz Josef Land, Russia, Arctic Ocean, Eurasia

The remains of the camp where Fridtjof Nansen over-wintered with Hjalmar Johansen in 1895-96, Franz Josef Land, Russia, Arctic Ocean, Eurasia

Views of Base Presidente Eduardo Frei Montalva, Antarctica, Southern Ocean, Polar Regions

Desert camp, Osian, Rajasthan, India

Desert camp, Osian, Rajasthan, India

Solar panels in a fishing camp on a bank of Lake Eyasi, Tanzania

Solar panels in a desert camp in Agafay, Morocco

Melt water on the Greenland ice sheet which is melting at an unprecedented rate due to human-induced climate change, near Camp Victor north of Ilulissat, Greenland, Polar Regions

The Climate Camp protest against airport development at Heathrow and the village of Sipson that would be demolished to make way for a third runway, Greater London, England, United Kingdom, Europe

A police photographer photographing protestors at the Climate Camp protest against airport development at Heathrow and the village of Sipson that would be demolished to make way for a third runway, Greater London, England, United Kingdom, Europe

The snout of the Eqip Sermia glacier at Camp Victor north of Ilulissat on Greenland's west coast, Polar Regions

Melt water on the Greenland ice sheet near Camp Victor north of Ilulissat, Greenland, Polar Regions

The Climate Camp protest against airport development at Heathrow and the village of Sipson that would be demolished to make way for a third runway, London, England, United Kingdom, Europe

The Climate Camp protest against airport development at Heathrow and the village of Sipson that would be demolished to make way for a third runway, London, England, United Kingdom, Europe

The Climate Camp protest against airport development at Heathrow and the village of Sipson that would be demolished to make way for a third runway, London, England, United Kingdom, Europe

The Climate Camp protest against airport development at Heathrow and the village of Sipson that would be demolished to make way for a third runway, Greater London, England, United Kingdom, Europe

Defensive platforms at the climate camp in Mainshill Wood near Doulgas in Lanarkshire, Scotland, United Kingdom, Europe

The Climate Camp protest against airport development at Heathrow and the village of Sipson that would be demolished to make way for a third runway, London, England, United Kingdom, Europe

The Climate Camp protest against airport development at Heathrow and the village of Sipson that would be demolished to make way for a third runway, Greater London, England, United Kingdom, Europe

Melt water on the Greenland ice sheet near camp Victor north of Ilulissat, Greenland, Polar Regions

The climate camp in Mainshill Wood near Doulgas in Lanarkshire, Scotland, United Kingdom, Europe

Drax coal fired power station in Yorkshire, England, United Kingdom, Europe

The Climate Camp protest against airport development at Heathrow and the village of Sipson that would be demolished to make way for a third runway, London, England, United Kingdom, Europe

Melt water on the Greenland ice sheet near camp Victor north of Ilulissat, Greenland, Polar Regions

Meltwater on the Greenland ice sheet near camp Victor north of Ilulissat, Greenland, Polar Regions

The climate camp protest site near Drax coal fired power station, Yorkshire, England, United Kingdom, Europe

Melt water on the Greenland ice sheet near camp Victor north of Ilulissat, Greenland, Polar Regions

Drax coal fired power station in Yorkshire, England, United Kingdom, Europe

Drax coal fired power station in Yorkshire, England, United Kingdom, Europe

"El Rincon" Campsite at Night, Perito Moreno National Park, Southern Andean Patagonia, Santa Cruz, Argentina

Camp Site At Keanakolu State Park With Cumulonimbus Sunrise Clouds, Island Of Hawaii, Hawaii, United States Of America

Camp with tents on the ice sheet. The brown sediment on the ice is created by the rapid melting of the ice. Landscape of the Greenland ice sheet near Kangerlussuaq. America, North America, Greenland, danish territory