“Water Windfall” Discovered Under California’s Drought-Stricken Central Valley

California’s megadrought is stretching into its fifth year, and as the best hope for rain, El Niño, fizzles, the outlook is grim. While Northern California’s winter precipitation approached normal, 60 percent of the state remains in a severe drought.

So a new discovery under the Central Valley has residents excited; researchers from Stanford mapped out a deep groundwater reservoir under the Valley that holds three times more water than previously thought. They recently published their results in the journal Proceedings of the National Academy of Sciences.