ナショナルジオグラフィックのインスタグラム(natgeo) - 11月17日 09時30分

Beautiful and rugged, the Arctic and Antarctic regions have an alien charm. But as the climate warms, these polar ecosystems have become some of the most vulnerable on Earth. Explore their beauty and fragility through these images and read more at the link in bio.

📸 @brianskerry | In Nunavut, Canada, sea ice melts into turquoise pools of water beneath the June summer sun. These melt pools accelerate the rate of warming in a region already warming faster than anywhere else on Earth.

📸 @Thomas Peschak | About eight million chinstrap penguins live on the Antarctic Peninsula. There are no land-based predators on the continent of Antarctica, which has allowed penguin populations to flourish, but warming temperatures are making it harder for them to survive.

📸 @katieorlinsky | The Batagaika crater in eastern Siberia is the world's biggest permafrost crater. Permafrost is permanently frozen ground that contains thousands of years' worth of dead plants and animals, but as the Arctic rapidly warms, this ground is thawing. In addition to destabilizing the ground, melting permafrost releases large quantities of greenhouse gases.

📸 @renan_ozturk | A team of explorers aboard the ship Polar Sun travels through Arctic waters to trace the route of Sir John Franklin, a British naval officer who led a doomed 19th-century expedition through the Canadian Arctic.

📸 @ronan_donovan | On Ellesmere Island in Nunavut, arctic wolves feast on the carcass of a musk ox, a type of long-haired, horned ox that roams the Arctic tundra.

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