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Hidden Greenland Canyons Mean More Sea Level Rise

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Greenland glacier

A glacier in the Sukkertoppen ice cap, southwest Greenland, flows down a rocky canyon like those mapped in this study.

Credit: NASA

Scientists at NASA and the University of California, Irvine (UCI), have found that canyons under Greenland's ocean-feeding glaciers are deeper and longer than previously thought, increasing the amount of Greenland's estimated contribution to future sea level rise.

From Jet Propulsion Laboratory/NASA
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