A California project that’s harnessing solar power to save water may seem a bit counterintuitive, given the dousing the state just received from a series of giant storms. But most of the state is still technically in a drought. That trend is expected to only intensify in the long term because of climate change, as warmer average temperatures increase evaporation. Take California’s vast system of open canals, which transport water across the state from reservoirs to agricultural lands and metropolitan areas. Scientists at the University of California, Merced, estimate that the waterways lose tens of billions of gallons of water to evaporation every year. A new project aims to shield the flows from the heat and sun by covering canals with solar panels while  helping the state meet its renewable energy goals.