Greenland melting landscape (IMAGE)
Caption
Most of Greenland is covered with ice today. But a new study shows that within the last million years it melted off and became covered with green tundra, perhaps like this view of eastern Greenland, on the coast near the ocean. The research provides strong evidence that Greenland is more sensitive to climate change than previously understood--and at risk of irreversibly melting.
Credit
Joshua Brown/UVM
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