Last Updated: June 10, 2022 at 5:58 a.m. ETFirst Published: June 9, 2022 at 9:50 a.m. ET

By

Ted Scambos

https://www.marketwatch.com/story/antarcticas-riskiest-glacier-is-under-assault-from-below-and-losing-its-grip-threatening-to-raise-sea-levels-by-10-feet-11654717813

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If even a small part of the Antarctic ice sheet were to completely crumble into the sea, the impact for the world’s coasts would be severe.

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Length10 minutes

Flying over Antarctica, it’s hard to see what all the fuss is about. Like a gigantic wedding cake, the frosting of snow on top of the world’s largest ice sheet looks smooth and unblemished, beautiful and perfectly white. Little swirls of snow dunes cover the surface.

But as you approach the edge of the ice sheet, a sense of tremendous underlying power emerges. Cracks appear in the surface, sometimes…