California’s Lithium Rush For EV Batteries Hinges On Taming Toxic, Volcanic Brine

<p>The Salton Sea region has one of the world’s largest known reserves of lithium, enough to power batteries for more than 50 million electric vehicles within a few years. But first it must be extracted from hot geothermal brine loaded with toxic material, a process that’s never been done before at scale.</p>