Waterfall in the ice of Potter glacier, Tierra del Fuego, Chile, South America

A lone adult emperor penguin (Aptenodytes forsteri) on sea ice in the Gullet between Adelaide Island and the Antarctic Peninsula, Antarctica, Polar Regions

Adelie penguins (Pygoscelis adeliae) hauled out onto the ice near Adelaide Island, Antarctica, Polar Regions

View of swans and ducks with Iceland model building in the city centre of Reykjavik in winter, Reykjavik, Iceland

Glacial iceberg detail from ice calved off the Sawyer Glacier in Tracy Arm, Southeast Alaska, United States of America

Adult bearded seal (Erignathus barbatus) hauled out on the ice in the Svalbard Archipelago, Norway

Adult bearded seal (Erignathus barbatus) hauled out on the ice in the Svalbard Archipelago, Norway

Brunnichs guillemot (Uria lomvia) in flight at Cape Fanshawe in the Svalbard Archipelago, Norway

Two mother polar bears (Ursus maritimus) with cubs of the year watch a male bear feeding on a fin whale carcass in Svalbard, Norway

Mother polar bear (Ursus maritimus), with cub of the year in Holmabukta in the Svalbard Archipelago, Norway

View of Gullfoss Waterfall on the Hvita River in winter, Western Region, Iceland

Adult gentoo penguins (Pygoscelis papua), returning and coming from the sea at Booth Island, Antarctica, Southern Ocean, Polar Regions

Views of Gold Harbor on South Georgia Island, Southern Ocean

A curious young polar bear (Ursus maritimus), approaches the ship on Spitsbergen in the Svalbard Archipelago, Norway

Adult black-legged kittiwakes (Rissa tridactyla) on ice in the Svalbard Archipelago, Barents Sea, Norway

A curious young polar bear (Ursus maritimus), approaches the ship on Spitsbergen in the Svalbard Archipelago, Norway

Harp seal (Pagophilus groenlandicus), hauled out on the pack-ice in between Iceland and Greenland in the Denmark Strait, Denmark

Polar bear on ice looking at camera, Svalbard and Jan Mayen, Norway, Polar Regions

A view in Glacier Bay National Park and Preserve, UNESCO World Heritage Site, Southeast Alaska, United States of America, North America

Adult black-legged kittiwakes (Rissa tridactyla) feeding at the base of a glacier in the Svalbard Archipelago, Norway, Arctic, Europe

Expedition zodiacs, Axel Heiberg island, Nunavut, Canadian Arctic, Canada, North America

Glacial iceberg detail from ice calved off the LeConte Glacier near Petersberg, Southeast Alaska, United States of America

View of swans and ducks with Lutheran Free Church in background in the city centre of Reykjavik at dusk in winter, Reykjavik, Iceland

View of icy river and houses in Hafnarfjorour at sunrise in winter, Hafnarfjorour, Reykjavik, Iceland

A curious young polar bear (Ursus maritimus), approaches the ship on Spitsbergen in the Svalbard Archipelago, Norway

A curious young polar bear (Ursus maritimus), approaches the ship on Spitsbergen in the Svalbard Archipelago, Norway

A curious young polar bear (Ursus maritimus), approaches ship on Spitsbergen in the Svalbard Archipelago, Norway

A curious young polar bear (Ursus maritimus), approaches the ship on Spitsbergen in the Svalbard Archipelago, Norway

Adult polar bear (Ursus maritimus) in Holmabukta on the northwest coast of Spitsbergen in the Svalbard Archipelago, Norway

Adult polar bear (Ursus maritimus) in Holmabukta on the northwest coast of Spitsbergen in the Svalbard Archipelago, Norway

Young male polar bear (Ursus maritimus), feeding on a fin whale carcass in Holmabukta in the Svalbard Archipelago, Norway

Adult polar bear (Ursus maritimus), on multi-year ice floes off the coast of Edgeoya, Svalbard, Norway

Young curious female polar bear (Ursus maritimus), on fast ice near Hinlopen Strait in the Svalbard Archipelago, Norway

Adelie penguin losing down feathers on ice, Antarctica, Polar Regions

Grey squirrel in snow on Hampstead Heath, North London, United Kingdom

Well-behaved dogs tied to snow covered plant pots outside Kenwood House, Hampstead Heath, London, England, United Kingdom

Beech leaves, beech tree, fagus sylvaticia l., covered in hoarfrost, switzerland

Beech leaves, fagus sylvaticia l., covered in hoarfrost, switzerland

An adult humpback whale (Megaptera novaeangliae) head-lunging off Point Adolphus in Icy Strait in Southeast Alaska, USA. Pacific Ocean

An adult humpback whale (Megaptera novaeangliae) breaching off Point Adolphus in Icy Strait in Southeast Alaska, USA. Pacific Ocean

Sunset over the snow-capped mountains of the Fairweather Range across Icy Strait in Southeast Alaska, USA, Pacific Ocean.

A group of adult humpback whales (Megaptera novaeangliae) feeding along the south side of Icy Strait in Southeast Alaska, USA

Black and white, high alpine mountain landscape, peak Aiguille du Gouter with glacier, Glacier de Taconnaz, behind Mont Blanc, Chamonix, Haute-Savoie, France, Europe

Polar bear with baby on ice floe, East coast Greenland, Denmark, Europe

Sheep herd grazing at frosty neolithic Windmill Hill, near Avebury, Wiltshire, England, UK

Polar bear with baby on ice floe, East coast Greenland, Denmark, Europe

Polar bear with baby on ice floe, East coast Greenland, Denmark, Europe

Polar Bear (Ursus maritimus) getting out of water, Svalbard Archipelago, Norway, Europe

Polar Bear (Ursus maritimus) swimming through pack ice, Svalbard Archipelago, Norway, Europe

Village of Barr and frosted vines in mist, Bas-Rhin, Alsace, France

A Gentoo penguin colony, Pygoscelis papua, near Groussac Argentinian hut, Petermann Island, Antarctica.

Mongolian horsemen lead a troop of horses running in a meadow covered by snow, Bashang Grassland, Zhangjiakou, Hebei Province, Inner Mongolia, China

Vernadsky research base, Ukrainian Antarctic station at Marina Point on Galindez Island in the Argentine Islands, Antarctica.

Gentoo penguin colony, Pygoscelis papua, at Petermann Island, Antarctica.

Vernadsky research base, the Ukrainian Antarctic station at Marina Point on Galindez Island in the Argentine Islands, Antarctica.

Plancius cruise ship Petermann Island, Antarctica.

Great flamingo (Phoenicopterus roseus) under a light snow shower, Etang de la Grande Maire, Serignan, Herault, France

Person who provide contact with the divers inside the maina (sawed entry hole) to dive under the ice, Arctic circle Dive Center, White Sea, Karelia, northern Russia

Two reindeer in front of a chum, surroundings of Uoyan, Buryatia, Russia

Village of Dambach-la-Ville and frosted vines, Bas-Rhin, Alsace, France

A technician rides an electric bike on the snow, passing a container and crates on the ground. A technician uses an electric fatbike to get to the summer camp area from the station. Immediately after arriving, he removes the electric battery and deposits it in the nearest building where the temperature is positive. If he forgets the battery outside, he will have to push the bike on the way back because the intense cold will have drained the battery. Concordia Antarctic Research Station, Dome C plateau, East Antarctica.

Vernadsky research base, Ukrainian Antarctic station at Marina Point on Galindez Island in the Argentine Islands, Antarctica.

Village/town signs fixed on poles in front of the station/ Making and putting up a sign indicating the direction of one's home is a deeply rooted tradition in the stations. Concordia Antarctic Research Station, Dome C plateau, East Antarctica.

A technician at the foot of the station holds a large evacuation sock into which a person is lowered. Once a month, all the staff carry out an emergency evacuation of the station using a ?sock?. The idea is to let yourself slide down a tube of fabric that slows your fall to such an extent that you can even stop yourself by spreading your arms and legs. A technician is waiting for us at the bottom to assist with the last metre of the descent. Concordia Antarctic Research Station, Dome C plateau, East Antarctica.

A technician goes into a raised square building on an orange metal structure. An Italian technician specialising in radio and telecommunications goes into the shelter that houses the VSAT antenna, the device that connects the station to the Internet by satellite. This is the station's only link with the outside world. Most of the buildings are elevated to prevent the formation of snowdrifts caused by wind-blown snow. Concordia Antarctic Research Station, Dome C plateau, East Antarctica.

Tractor parked in front of the Raid caravan. Two technicians hug each other. The Raid supplies the resort 2 or 3 times each summer. A one-way trip represents a distance of 1,200km, an altitude difference of 3,200m, and a driving time of 10 days at a rate of 12 hours per day. Each arrival of the Raid team at Concordia is a moment of joy and celebration. Concordia Antarctic Research Station, Dome C plateau, East Antarctica.

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

Snowfall above La Clusaz. Winter scene in Haute-Savoie, France

Great flamingo (Phoenicopterus roseus) under a light snow shower, Etang de la Grande Maire, Serignan, Herault, France

Vernadsky research base, the Ukrainian Antarctic station at Marina Point on Galindez Island in the Argentine Islands, Antarctica.

Svalbard Global Seed Vault, Saatgut Tresor. Longyearbyen, die Hauptstadt von Svalbard auf der Insel Spitzbergen im Spitzbergen Archipel. Arktis, Europa, Skandinavien, Norwegen, Spitzbergen

Plancius cruise ship Petermann Island, Antarctica.

Castle overlooking Chatillon Bay and autumn mists north of Lake Bourget, Savoie, Alps, France

Jukkasjarvi, Sweden.