The Irreversible Melting of the West Antarctic Ice Sheet

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The coast of Antarctica

Two studies released this week confirmed that the West Antarctic Ice Sheet is collapsing and there is very little that can be done to stop or slow it. The melting ice could ultimately mean a 10-foot sea level rise. Thomas Wagner, Cryospere Program Scientist with NASA, explains why the ice sheet is melting and what it means for the planet's future.