Earlier this summer, researchers at UC-Davis confirmed what a lot of us already know—that saving water saves energy. The analysis from the UC-Davis Center for Water-Energy Efficiency found that California’s mandatory 25 percent reduction in urban water use, which was adopted in May 2015 due to the ongoing severe drought, resulted in significant energy and greenhouse gas savings. From June 2015 to February 2016, the electricity saved by reducing urban water use is estimated to have been nearly 922 gigawatt-hours.