Deep ice growth on Antarctica’s ghost mountains

New Scientist: Anyone who lives in areas where snow accumulates over the winter learns that new snow builds on top of old mounds. So it's only natural to assume the same process created the great ice sheets in Antarctica and Greenland. Not so, say Robin Bell of the Lamont-Doherty Earth Observatory in Palisades, New York, and her colleagues. Their radar observations show that the East Antarctic ice sheet is also growing from the bottom up. "We usually think of ice sheets like cakes - one layer at a time, added......

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