Huge iceberg, Zodiac, Scoresbysund, Northeast Greenland, Polar Regions

Floating ice, Vikingbukta (Viking Bay), Scoresbysund, Northeast Greenland, Polar Regions

Grounded icebergs, Rode O (Red Island), Scoresbysund, Northeast Greenland, Polar Regions

Iceberg, Vikingbukta (Viking Bay), Scoresbysund, Northeast Greenland, Polar Regions

Glacial iceberg detail at Cuverville Island, Antarctica, Polar Regions

Frozen icebergs locked in the frozen waters of Fjallsarlon Glacier lagoon, South East Iceland, Iceland, Polar Regions

The first light of dawn illuminates the rocks shaped by the wind and the cold sea of Uttakleiv, Lofoten Islands, Arctic, Norway, Scandinavia, Europe

Winter view over frozen Jokulsarlon Glacier Lagoon showing blue icebergs covered in snow and distant mountains, South Iceland, Polar Regions

Jokulsarlon Glacier Lagoon with boat tour, with Breidamerkurjokull Glacier behind, South East Iceland, Iceland, Polar Regions

The Aurora Borealis (Northern Lights) display over Jokulsarlon Glacial Lagoon, South Iceland, Iceland, Polar Regions

Tannfors, a 32m high, 60m wide frozen waterfall, near Are, Jamtland, Sweden, Scandinavia, Europe

Icebergs from the icefjord, Ilulissat, Disko Bay, Greenland, Polar Regions

Panoramic view of iceberg in the Weddell Sea, Antarctica, Polar Regions

Aiguilles de Chamonix from Lacs des Cheserys, Chamonix, French Alps, France, Europe

Ice Rink at Rockefeller Center, Mid town Manhattan, New York City, New York, United States of America, North America

Prayer flags and Erongcuo Lake, Yading Nature Reserve, Sichuan Province, China, Asia

Franz Josef Glacier, Westland, UNESCO World Heritage Site, South Island, New Zealand, Pacific

Aerial of the Icebreaker '50 years of victory' on its way to the North Pole, Arctic

Ship approaching Brown Bluff, Antarctic Peninsula, Antarctica, Polar Regions

Breaking ice in Leifdefjord, Svalbard Archipelago, Norway, Arctic, Scandinavia, Europe

Adult gentoo penguins (Pygoscelis papua) leaping onto ice in the Enterprise Islands, Antarctica, Southern Ocean, Polar Regions

Sea ice mixed with brash ice near Pleneau Island, western side of the Antarctic Peninsula, Southern Ocean, Polar Regions

Sunset over ice floes and icebergs, near Pleneau Island, Antarctica, Southern Ocean, Polar Regions

Cruise ship anchoring in the volcanic crater of Deception Island, South Shetland Islands, Antarctica, Polar Regions

Bahia Paraiso (Paradise Bay), Antarctic Peninsula, Antarctica, Polar Regions

Negribreen (Negri Glacier), Olav V Land, Spitsbergen, Svalbard Archipelago, Norway, Scandinavia, Europe

Young polar bear (Ursus maritimus) on the ice in Bear Sound, Spitsbergen Island, Svalbard, Norway, Scandinavia, Europe

Grounded icebergs, Sydkap, Scoresbysund, Northeast Greenland, Polar Regions

Grounded icebergs, Rode O (Red Island), Scoresbysund, Northeast Greenland, Polar Regions

The Sunwapta River which is a tributary of the Athabasca River in jasper National Park, Alberta, Canada, North America

Above and below water view of Danco Island, Errera Channel, Antarctica, Polar Regions

Glacial iceberg detail at Cuverville Island, Antarctica, Polar Regions

Snow-covered mountains line the ice floes in Penola Strait, Antarctica, Polar Regions

Wind and water sculpted iceberg with icicles at Booth Island, Antarctica, Polar Regions

Night panoramic view of the Oslo Opera House, frozen bay and new business quarter, Oslo, Norway, Scandinavia, Europe

Gentoo penguin on an iceberg reflected in calm waters of sunny Neko Harbour, mountain and glacier backdrop, Antarctica, Polar Regions

Harbor seals (Phoca vitulina) on ice in front of Dawes Glacier, Endicott Arm, southeast Alaska, United States of America, North America

South Sawyer Glacier, Tracy Arm-Fords Terror Wilderness Area, Southeast Alaska, United States of America

Icebergs from the icefjord, Ilulissat, Disko Bay, Greenland, Polar Regions

Tourists walking towards the icefjord at Sermermiut, Ilulissat, formerly Jacobshavn, Greenland, Polar Regions

Ship approaching Brown Bluff, Antarctic Peninsula, Antarctica, Polar Regions

A cold winter day in the Norfolk Broads showing a frozen Horsey Mere, Horsey, Norfolk, England, United Kingdom, Europe

Huge iceberg near Booth Island, western side of the Antarctic Peninsula, Southern Ocean, Polar Regions

Sea ice mixed with brash ice near Pleneau Island, western side of the Antarctic Peninsula, Southern Ocean, Polar Regions

Cruise ship approaching Deception Island, South Shetland Islands, Antarctica, Polar Regions

Frozen San Miguel River, San Miguel County, Colorado, United States of America, North America

Leopard seal (Hydrurga leptonyx) lying on an ice shelf, Cierva Cove, Antarctica, Polar Regions

Glacier melt water river, Fox Glacier, Westland National Park, UNESCO World Heritage Site, South Island, New Zealand, Pacific

Adult polar bear (Ursus maritimus) on the ice in Bear Sound, Spitsbergen Island, Svalbard, Norway, Scandinavia, Europe

Adult polar bear (Ursus maritimus) on the ice in Bear Sound, Spitsbergen Island, Svalbard, Norway, Scandinavia, Europe

Grounded icebergs, Rode O (Red Island), Scoresbysund, Northeast Greenland, Polar Regions

Pieces of glacier ice washed up on black volcanic sand beach at sunrise, near Jokulsarlon Glacial Lagoon, South Iceland, Polar Regions

Glacier face at Negribreen, Eastern coast of Spitsbergen, an island in the Svalbard Archipelago, Arctic, Norway, Europe

Adult harbour seals, Phoca vitulina, hauled out on ice at South Sawyer Glacier, Tracy Arm, Alaska, United States of America

Glacier ice on black sand with crashing waves, near Jokulsarlon, South Iceland, Iceland, Polar Regions

Harvard Glacier in College Fjord, Southeast Alaska, United States of America, North America

Icebergs from the icefjord, Ilulissat, Disko Bay, Greenland, Polar Regions

The icefjord at Sermermiut, Ilulissat, formerly Jacobshavn, Greenland, Polar Regions

Russian icebreaker, Kapitan Khlebnikov in pack ice, Weddell Sea, Antarctica, Polar Regions

Yangmaiyong, Yading Nature Reserve, Sichuan Province, China, Asia

Jokulsarlon Glacier Lagoon, Iceland, Polar Regions

Vermilion Lakes, Banff National Park, UNESCO World Heritage Site, Rocky Mountains, Alberta, Canada, North America

Sailing yacht and iceberg, Errera Channel, Antarctic Peninsula, Antarctica, Polar Regions

Maloe More (Little Sea), frozen lake during winter, Olkhon island, Lake Baikal, UNESCO World Heritage Site, Irkutsk Oblast, Siberia, Russia, Eurasia

Sawyer Glacier in Tracy Arm Fjord, Alaska, United States of America, North America

Glacier, Magdalenefjord, Svalbard. NB Lack of Drift ice.

Huge iceberg amongst sea ice near Petermann Island, western side of the Antarctic Peninsula, Southern Ocean, Polar Regions

Sunset over ice floes and icebergs, near Pleneau Island, Antarctica, Southern Ocean, Polar Regions

Huge iceberg amongst sea ice near Petermann Island, western side of the Antarctic Peninsula, Southern Ocean, Polar Regions

Argentinean research station on Mikkelson Island, Antarctica, Polar Regions

Argentinean research station on Mikkelson Island, Antarctica, Polar Regions

Leopard seal (Hydrurga leptonyx) lying on an ice shelf, Cierva Cove, Antarctica, Polar Regions

Glacial ice calved from the LeConte Glacier, Outside Petersburg, Southeast Alaska, United States of America, North America

Bahia Paraiso (Paradise Bay), Antarctic Peninsula, Antarctica, Polar Regions

Gnalodden cliff, Hornsund, Spitsbergen, Svalbard Archipelago, Norway, Scandinavia, Europe

Austfonna ice cap, Nordaustlandet, Svalbard, Norway, Scandinavia, Europe

Glacier, Argentine Research Station, Paradise Bay, Antarctic Peninsula, Antarctica, Polar Regions

Grounded icebergs, Rode O (Red Island), Scoresbysund, Northeast Greenland, Polar Regions

Iceberg, Vikingbukta (Viking Bay), Scoresbysund, Northeast Greenland, Polar Regions

Grounded icebergs, Rode O (Red Island), Scoresbysund, Northeast Greenland, Polar Regions

Iceberg with moraine material and icicles at Booth Island, Antarctica, Polar Regions

Mountains behind the frozen water of Jokulsarlon Iceberg Lagoon, Jokulsarlon, south east Iceland, Polar Regions

Gorgeous iceberg in the Gerlache Strait, Antarctica, Polar Regions

Kirkjufell (Church Mountain) in winter, near Grundafjordur, Snaefellsnes Peninsula, Iceland, Polar Regions

Glacier face at Negribreen, Eastern coast of Spitsbergen, an island in the Svalbard Archipelago, Arctic, Norway, Europe

Winter view of Jokulsarlon lagoon, Jokulsarlon, South Iceland, Polar Regions

Icebergs from the icefjord, Ilulissat, Disko Bay, Greenland, Polar Regions

Coast and settlement of Ilimanaq, formerly Claushavn, Greenland, Polar Regions

Vermilion Lakes, Banff National Park, UNESCO World Heritage Site, Rocky Mountains, Alberta, Canada, North America

A view over houses and the Ilulissat Kangerlua Glacier also known as Sermeq Kujalleq, Ilulissat, Disko Bay, Greenland, Polar Regions

Neko Cove (Harboor), Antarctica, Polar Regions

Icicles hanging from iceberg on Booth Island, western side of the Antarctic Peninsula, Southern Ocean, Polar Regions

Adult crabeater seal (Lobodon carcinophaga), Cuverville Island, near the Antarctic Peninsula, Southern Ocean, Polar Regions

Huge iceberg amongst sea ice in the Yalour Islands, western side of the Antarctic Peninsula, Southern Ocean, Polar Regions

Huge iceberg in Port Lockroy, western side of the Antarctic Peninsula, Southern Ocean, Polar Regions

Huge iceberg amongst sea ice near Petermann Island, western side of the Antarctic Peninsula, Southern Ocean, Polar Regions

Ice shelfs at the entrance of the volcanic island of Deception Island, South Shetland Islands, Antarctica, Polar Regions

Henryk Arctowski Polish Antarctic Station, King George Island, South Shetland Islands, Antarctica, Polar Regions

Huge glaciers shining blue, Danco Island, Antarctica, Polar Regions

Black ice, Bahia Paraiso (Paradise Bay), Antarctic Peninsula, Antarctica, Polar Regions