How climate change spurs megadroughts – Grist

by | Aug 9, 2022 | Climate Change

This story is part of the Grist series Parched, an in-depth look at how climate change-fueled drought is reshaping communities, economies, and ecosystems.

On an afternoon in late June, the San Luis Reservoir — a 9-mile lake about an hour southeast of San Jose, California — shimmered in 102-degree heat. A dusty, winding trail led down into flatlands newly created by the shrinking waterline. Seven deer, including a pair of fawns, grazed on tall grasses that, in wetter times, would have been at least partially underwater. On a distant ridge, wind turbines turned languidly. 

That day, the reservoir, California’s sixth-largest and a source of water for millions of people, was just 40 percent full. Minerals deposited by the receding waters had turned the reservoir’s lower banks white, like the rings on a bathtub. Discarded clothing, empty bottles, and a lone shoe sat scattered across the newly exposed, parched ground. An interactive graphic in the visitor’s center reported that this year’s snowpack — which provides the water that travels from the Sacramento River Delta into the reservoir itself — was zero percent of the yearly average. 

Depending on how you look at it, California — and most of the American West — has either entered its third catastrophic drought of the past 10 years, or has been in a constant, …

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