A new software tool can help reduce the risk of triggering manmade earthquakes by calculating the probability that oil and gas production activities will trigger slip in nearby faults.
An analysis by experts in Earth science and environmental law at Stanford and other institutions proposes creating underground easements to allow private landowners to restrict hydraulic fracturing and mining.
New research indicates that California's Central Valley harbors three times more groundwater than previously estimated, but challenges to using it include pumping costs, ground subsidence and possible contamination from fracking and other oil and gas activities.
