Map Shows Where Sea Level Rise Will Drown American Cities | WIRED - 0 views
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A new map from Climate Central shows how the water will flow into hundreds of US cities under the best and worst global warming scenarios
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“One of the most astonishing things to me was finding that burning one gallon of gasoline translates to adding 400 gallons of water volume to the ocean in the long run,”
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For example, when the global atmospheric CO2 level reaches 930 gigatons, Boston will be due for about 9 feet of sea level rise. That’s enough water to cover 25 percent of the city during high tide. In the extreme cuts scenario, atmospheric CO2 never reaches that level. Under business as usual fossil emissions however, a quarter of Boston is locked into a future under water by 2045.
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The study, in other words, isn’t about how much see level rise happens this century, but whether this century’s emissions bank enough carbon for total ice melt down—or some less drastic version. “Our analysis really looks at a 2000 year envelope,” says Strauss.
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Under the ice, Greenland and Antarctica are uncharted territories. In order to calculate the rate at which those massive ice sheets slough off, Levermann says he would need to know more about the texture of the underlying rock.