March 28, 2018

San Francrisco threatened by sea rise

Wired -Sea level rise threatens to wipe out swaths of [San Francico] Bay's densely populated coastlines, and a new study  in Science Advances paints an even more dire scenario: The coastal land is also sinking, making a rising sea that much more precarious. Considering sea level rise alone, models show that, on the low end, 20 square miles could be inundated by 2100. But factor in subsiding land and that estimate jumps to almost 50 square miles. The high end? 165 square miles lost.

The problem is a geological phenomenon called subsidence. Different kinds of land sink at different rates. .... San Francisco Airport is sinking fast and could see half its runways and taxiways underwater by 2100, according to the new analysis.

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