California drought causing valley land to sink

20 agosto 2015

As Californians continue pumping groundwater in response to the historic drought, the California Department of Water Resources has released a new NASA report showing land in the San Joaquin Valley is sinking faster than ever before, nearly 2 inches (5 centimeters) per month in some locations.
http://www.sciencedaily.com/releases/2015/08/150820083230.htm

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