This story was originally published by High Country News and is reproduced here as part of the Climate Desk collaboration.
In California’s San Joaquin Valley, the farming town of Corcoran has a multimillion-dollar problem. It is almost impossible to see, yet so vast it takes NASA scientists using satellite technology to fully grasp.
Corcoran is sinking.
Over the past 14 years, the town has sunk as much as 11.5 feet in some places — enough to swallow the entire first floor of a two-story house and at times making Corcoran one of the fastest-sinking areas in the country, according to experts with the United States Geological Survey.
Subsidence is the technical term for the phenomenon — the slow-motion deflation of land that occurs when large amounts of water are withdrawn from deep underground, causing underlying sediments to fall in on themselves.
Each year, Corcoran’s entire 7.47 square miles and its 21,960 residents sink just a little bit, as the soil dips anywhere from a few inches to nearly two feet. No homes, buildings or roads crumble. Subsidence is not so dramatic, but its... Read more