Thursday, March 31, 2016

With a collapsing West Antarctica, sea level rise may be twice as high as we thought

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The viability of coastal megacities from Miami to Manila to Dhaka are intertwined with the fate of the vast West Antarctic Ice Sheet, and new, unnerving evidence shows that the ice loss from that ice sheet may raise global sea levels by twice the rate previously estimated for this century.

For example, Boston could see more than 1.5 meters, or about 5 feet, of sea-level rise in the next 100 years. 

The study, published in the journal Nature on Wednesday, indicates that this ice sheet is far more sensitive to changes in the amount of greenhouse gases in the atmosphere as well as air and ocean temperatures than previously thought. Read more...

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