The Arctic Circle — and the sovereignty of its biggest island, Greenland — is back in the international geopolitical ...

At some point, melting ice in the North Atlantic—caused by increased global warming—will cause so much freshwater to be ...

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Public school pupils are seen inside their classrooms next to the large icebergs in the city of Ilulissat, Greenland, Feb. 19 ...

A total lunar eclipse on March 13-14, 2025, will be visible across Earth's night side. See detailed maps of where and when to ...