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If you follow tech news, it’s pretty hard to miss stories reminding us of the tremendous potential that lithium-ion batteries have in store for the world – longer times to gaze into our dazzling new smartphones and longer distances to travel in our cutting-edge electric cars without a re-charge. And yet, most of us probably don’t think too much about the environmental cost of mining all of this lithium. In Australia and South America where 80-90 percent of the world’s raw lithium comes from, the extraction process is dirty and energy intensive. This week on Sea Change Radio, we speak to Sammy Roth of the Los Angeles Times about the promise of extracting lithium in a much cleaner way right here in the US. We learn about plans to extract lithium from the Salton Sea geothermal fields in the Southern California desert, how this process will be viewed by environmentalists and what it could mean for the lithium industry.