In Current Drought, Central Valley is Sinking Faster Than We Thought

Farmers and residents are pumping so much groundwater in the Central Valley that the land is sinking faster than experts expected. New satellite data from NASA finds it's already starting to put the region's bridges and roads in danger. Of particular concern, is its effect on the California Aqueduct, which carries water from the Sierra Nevada to Los Angeles. In just eight months last year, land underneath a stretch of the Aqueduct sank 13 inches.