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Hidden Greenland cave reveals the Arctic once fully melted under a mild climate

Summary by Earth

A cave in northern Greenland shows the Arctic once thawed under mild conditions. Scientists say even small warming can trigger huge changes.

A cave in northern Greenland shows the Arctic once thawed under mild conditions. Scientists say even small warming can trigger huge changes.

1 day ago

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Earth broke the news in 1 day ago on Tuesday, October 28, 2025.

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