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Hidden rivers of warm water threaten vast Antarctic glacier

One of the largest, most unstable glaciers in Antarctica is sliding into the ocean. That’s due, in large part, to hidden rivers of warm water that lubricate its underbelly, more so now than ever in the era of climate change. Now, researchers know what those unseen channels look like.

By using equipment that can measure fluctuations in gravity, radar and seismic waves, scientists were able to map precisely where these glacier-melting channels cut through the deep seabed.

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