It’s getting hot over Greenland. Not the kind of hot we think of as each summer rolls along. But the kind of hot that melts massive two-mile-high slabs of ice. How hot? Within a decade or two, Greenland temps could reach their highest levels in at least 400,000 years. And that’s a problem. A big fracking problem.
Because a mere 1 degree Celsius of warming separates Greenland from temperatures last seen during the warmest interglacial of the last million years. During that time, sea levels were 6-13 meters higher than today — a staggering 19-44 feet. Melt came from both West Antarctica and Greenland, but until this week we didn’t know what melt portion came from which glacier system. For a study published Wednesday in Nature has pinned down the extent of the Greenland ice sheet of 400,000 years ago. And this new knowledge gave researchers the ability…
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