NASA Baffled By Mysterious Ice Circles In The Arctic

NASA has no idea what is causing some mysterious ice holes in arctic sea ice.

Add this to the ever-growing list of things you have to worry about:

Somewhere in the Arctic sea ice, where the temperatures are typically below

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Two years ago, former NASA climate scientist James Hansen and a number of colleagues laid out a dire scenario in which gigantic pulses of fresh water from melting glaciers could upend the circulation of the oceans, leading to a

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