Car driving on unsurfaced road, Atlantic Ocean coast, Jandia peninsula, Fuerteventura, Canary Islands, Spain, Atlantic, Europe

Rock climber in action on the world-famous granite boulders of the Buttermilks, Bishop, Sierra Nevada, California, United States of America

Sharks Tooth Peak and Raspberry Hut, Matukituki Valley, Mount Aspiring National Park, Central Otago, South Island, New Zealand, Pacific

A climber on the classic extreme route Raven Wall on the cliffs at Bosigran, near St. Just, West Penwith, Cornwall, England, United Kingdom, Europe

View of snow-covered Half Moon Island in the South Shetland Group, Antarctica, Southern Ocean, Polar Regions

Hole in an iceberg, Belcher island, Devon island, Nunavut, Canadian Arctic, Canada, North America

Gentoo penguin (Pygoscelis papua) breeding colony at Petermann Island, Antarctica, Southern Ocean, Polar Regions

Santa Laura Salpeter mine, UNESCO World Heritage Site, Atacama desert, Chile, South America

Adelie penguins on ice with dark skies, Antarctica, Polar Regions

AlUla Zipline, from Harrat volcanic plateau, racing 1.5km at up to 120km/hr, in incredible scenery of the Mountains, Medina Province, Saudi Arabia

Iceberg against orange sunset sky, Antarctica, Polar Regions

Extreme tidal range shown here at low tide as found on Bigge Island, Kimberley, Western Australia, Australia, Pacific

Adult polar bear (Ursus maritimus) with a freshly killed ringed seal, PUnited States of America hispida, in the Svalbard Archipelago, Norway

Aerial of Axel Heiberg island, Nunavut, Canadian Arctic, Canada, North America

Views of the abandoned whale processing station at Whalers Bay on Deception Island, South Shetland Islands, Antarctica, Polar Regions

Views signpost and the Trinity Church at Belingshausen Russian Research Station, Antarctica, Southern Ocean, Polar Regions

Adult king penguins (Aptenodytes patagonicus) amongst chicks (okum boys) at Salisbury Plain, South Georgia, Polar Regions

Coastline and recovery place of the Chinchorro Mummies, UNESCO World Heritage Site, Camarones Valley, northern Atacama desert, Chile, South America

Views of Deception Island, an island in the South Shetland Islands off the Antarctic Peninsula

08/04/2009. Spain, España, Canary Islands, Canarias, Tenerife, Los Roques de Garcia and Mount Teide. Volcanic landscape and rock formation with people. . Santa Cruz, Teide National Park, Tenerife Island. Canary Islands

Views of Deception Island, an island in the South Shetland Islands off the Antarctic Peninsula

The Lindblad Expedition ship National Geographic Explorer operating in and around the Antarctic peninsula in Antarctica

Views of Deception Island, an island in the South Shetland Islands off the Antarctic Peninsula

08/04/2009. Spain, España, Canary Islands, Canarias, Tenerife, Los Roques de Garcia and Mount Teide. Volcanic landscape and rock formation with people. . Santa Cruz, Teide National Park, Tenerife Island. Canary Islands

Views of Deception Island, an island in the South Shetland Islands off the Antarctic Peninsula

Early morning light on sand stone formations at Punta Colorado os Isla San Jose in the Gulf of California (Sea of Cortes), Baja California Sur, Mexico.

Natural history staff from the Lindblad Expedition ship National Geographic Endeavour doing various things in and around the Antarctic Peninsula

Natural history staff from the Lindblad Expedition ship National Geographic Explorer doing various things in and around the Antarctic Peninsula

Natural history staff from the Lindblad Expedition ship National Geographic Endeavour doing various things in and around the Antarctic Peninsula

Open leads surrounded by multi-year ice floes in the Barents Sea between Edge¯ya (Edge Island) and Kong Karls Land in the Svalbard Archipelago, Norway.

Views of Deception Island, an island in the South Shetland Islands off the Antarctic Peninsula

08/04/2009. Spain, España, Canary Islands, Canarias, Tenerife, Los Roques de Garcia and Mount Teide. Volcanic landscape and rock formation with people. . Santa Cruz, Teide National Park, Tenerife Island. Canary Islands

Open leads surrounded by multi-year ice floes in the Barents Sea between Edgeøya (Edge Island) and Kong Karls Land in the Svalbard Archipelago, Norway.

Guests from the Lindblad Expedition ship National Geographic Explorer, Antarctica

Heavy storm clouds and ice choked waters surround Petermann Island. Petermann Island is a small island just off the west side of the Antarctic Peninsula of Antarctica

Open leads surrounded by multi-year ice floes in the Barents Sea between Edgeøya (Edge Island) and Kong Karls Land in the Svalbard Archipelago, Norway.

Open leads surrounded by multi-year ice floes in the Barents Sea between Edgeøya (Edge Island) and Kong Karls Land in the Svalbard Archipelago, Norway.

Open leads surrounded by multi-year ice floes in the Barents Sea between Edgeøya (Edge Island) and Kong Karls Land in the Svalbard Archipelago, Norway.

Natural history staff from the Lindblad Expedition ship National Geographic Explorer doing various things in and around the Antarctic Peninsula

08/04/2009. Spain, España, Canary Islands, Canarias, Tenerife, Los Roques de Garcia and Mount Teide. Volcanic landscape and rock formation with people. . Santa Cruz, Teide National Park, Tenerife Island. Canary Islands

Open leads surrounded by multi-year ice floes in the Barents Sea between Edgeøya (Edge Island) and Kong Karls Land in the Svalbard Archipelago, Norway.

Guests from the Lindblad Expedition ship National Geographic Explorer, Antarctica

Views of Deception Island, an island in the South Shetland Islands off the Antarctic Peninsula

Guests from the Lindblad Expedition ship National Geographic Explorer, Antarctica

Views of Deception Island, an island in the South Shetland Islands off the Antarctic Peninsula which has one of the safest harbours in Antarctica.

Views of Deception Island, an island in the South Shetland Islands off the Antarctic Peninsula

The Lindblad Expedition ship National Geographic Explorer operating in and around the Antarctic peninsula in Antarctica

Views of Deception Island, an island in the South Shetland Islands off the Antarctic Peninsula

Views of Deception Island, an island in the South Shetland Islands off the Antarctic Peninsula

Caucasian hiker on mountaintop, Mont Blanc, Chamonix, France

Caucasian girl hanging on zip line in forest

Caucasian man playing tug-of-war with dog in snow

Snowy mountain road, Aletsch Glacier, Languedoc-Roussillon, Switzerland

Caucasian man winding rope

Caucasian woman fastening rope to harness

Caucasian man climbing rock

Caucasian man fastening rope to harness of woman

Caucasian rock climber wearing sock

Caucasian rock climber fastening rope to harness

Caucasian man climbing rock

Caucasian rock climber tying shoe

Caucasian rock climber chalking hands

Caucasian woman climbing rock

Carabiners on Caucasian man climbing rock

Caucasian woman climbing rock

Carabiners on Caucasian hiker

Caucasian woman resting on rock near rope

Woman hiking on mountain in winter

Polar bear floating on ice floe in ocean

Polar bear walking on ice

Man hiking on mountain in winter

Tractor with snow plow driving on remote road

Thrill seekers experience cage diving with Galapagos sharks, Carcharhinus galapagensis, North shore, Oahu, Hawaii, USA

Whitetip reef shark, Triaenodon obesus, Namu atoll, Marshall Islands (N. Pacific).

Red (Lace) coral, Distichopora violacea, feather stars, and juvenile gray reef shark, Carcharhinus amblyrhynchos, Ailuk atoll, Marshall Islands, Pacific

Diamond beach, Iceland, North Atlantic Ocean

A young Inuit boy climbs out of an igloo in Northwestern Greenland. Many of the Inuit who live in this polar region still live a subsistence hunting lifestyle and practice ice age old traditions. Winter temperatures hover between -20 and -50 Degrees Fahrenheit in this extreme environment.

Each summer the Sami reindeer herders of Northern Scandinavia face the challenge of ear-marking each of the new calves born to their herd. Using the ancient mark of their family, the small carvings made in the ears allow the herders to recognise their herd whilst they graze. It's a daunting task given the number of reindeer they are responsible for and the vast distances they cover as they graze across the mountain pastures north of the Arctic Circle.Sweden?????s indigenous Sami reindeer herders are demanding state aid to help them cope with the impact of this summer?????s unprecedented drought and wildfires, saying their future is at risk as global warming changes the environment in the far north. The Swedish government this week announced five major investigations aimed at preparing the country for the kind of extreme heatwave it experienced in July, when temperatures exceeded 30C (86F) and forest fires raged inside the Arctic circle.

Each summer the Sami reindeer herders of Northern Scandinavia face the challenge of ear-marking each of the new calves born to their herd. Using the ancient mark of their family, the small carvings made in the ears allow the herders to recognise their herd whilst they graze. It's a daunting task given the number of reindeer they are responsible for and the vast distances they cover as they graze across the mountain pastures north of the Arctic Circle.Sweden?????s indigenous Sami reindeer herders are demanding state aid to help them cope with the impact of this summer?????s unprecedented drought and wildfires, saying their future is at risk as global warming changes the environment in the far north. The Swedish government this week announced five major investigations aimed at preparing the country for the kind of extreme heatwave it experienced in July, when temperatures exceeded 30C (86F) and forest fires raged inside the Arctic circle.

Each summer the Sami reindeer herders of Northern Scandinavia face the challenge of ear-marking each of the new calves born to their herd. Using the ancient mark of their family, the small carvings made in the ears allow the herders to recognise their herd whilst they graze. It's a daunting task given the number of reindeer they are responsible for and the vast distances they cover as they graze across the mountain pastures north of the Arctic Circle.Sweden?????s indigenous Sami reindeer herders are demanding state aid to help them cope with the impact of this summer?????s unprecedented drought and wildfires, saying their future is at risk as global warming changes the environment in the far north. The Swedish government this week announced five major investigations aimed at preparing the country for the kind of extreme heatwave it experienced in July, when temperatures exceeded 30C (86F) and forest fires raged inside the Arctic circle.

Each summer the Sami reindeer herders of Northern Scandinavia face the challenge of ear-marking each of the new calves born to their herd. Using the ancient mark of their family, the small carvings made in the ears allow the herders to recognise their herd whilst they graze. It's a daunting task given the number of reindeer they are responsible for and the vast distances they cover as they graze across the mountain pastures north of the Arctic Circle.Sweden?????s indigenous Sami reindeer herders are demanding state aid to help them cope with the impact of this summer?????s unprecedented drought and wildfires, saying their future is at risk as global warming changes the environment in the far north. The Swedish government this week announced five major investigations aimed at preparing the country for the kind of extreme heatwave it experienced in July, when temperatures exceeded 30C (86F) and forest fires raged inside the Arctic circle.

F5 Tornado Touches Down In Elie, Manitoba.

People Walking Across A Rope Bridge

Hawaii, Maui, Extreme close-up yellow hibiscus blossom with red center, water droplets

Hawaii, Maui, Extreme close-up of pink torch ginger blossom, shiny and wet with dew, detail

Hikers backpacking on mountain, Everest, Khumbu region, Nepal, Everest, Khumbu region, Nepal

Man sitting in base camp tent, Everest, Khumbu glacier, Nepal, Everest, Khumbu glacier, Nepal

Yak eating from bowl at base camp, Everest, Khumbu region, Nepal, Everest, Khumbu region, Nepal

Carabiner on hook in steep rock face

Distant people walking on snowy landscape, White Sands National Monument, New Mexico, USA

House in winter covered in snow, Tasiilaq, south eastern Greenland

A group of orange tents at a climbers base camp in the Himalayas region, Khumbu region, Nepal

Snowy road, Tasiilaq, Greenland

Rio Tinto red river reddish hue due to iron copper and sulfur dissolved in the water habitat with extreme conditions for life forms Andalusia

Rio Tinto red river reddish hue due to iron copper and sulfur dissolved in the water habitat with extreme conditions for life forms Andalusia

aerial view Rio Tinto red river reddish hue due to iron copper and sulfur dissolved in the water habitat with extreme conditions for life forms Andalusia

Rio Tinto red river reddish hue due to iron copper and sulfur dissolved in the water habitat with extreme conditions for life forms Andalusia

Rio Tinto red river reddish hue due to iron copper and sulfur dissolved in the water habitat with extreme conditions for life forms Andalusia

Rio Tinto red river reddish hue due to iron copper and sulfur dissolved in the water habitat with extreme conditions for life forms Andalusia

Snowmobile tracks on frozen lake, USA, New York State, Lake Champlain