Specifically, zombie ice from Greenland, which the AP notes is ice still theoretically attached to a glacier but no longer being "charged" by it, will cause this.
The real issue is that this is at least twice as high as previous estimates, which should lead concerned people to wonder just how much other estimates of ocean rise due to the global warming portion of climate change may be off on the low side. Specifically, the IPCC, showing just how conservative many of its climate change prognostications are, sadly, last year predicted 2-5 inches.
And, the 10 inches is best-case scenario. William Colgan, a glaciologist at the University of Greenland and Denmark, said the worst case would be 30 inches.
In addition, if we stopped global warming right now, 3.3 percent of Greenland's current ice would still melt.
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