Can a magic box full of new tech help solve the climate crisis?

An invention that can pull lithium out of geothermal brine is a main character in this week’s episode of the new Marketplace podcast, “How We Survive,” hosted by regular “Marketplace Tech” host Molly Wood. Against the backdrop of the United Nations climate summit this week, where more than 40 world leaders have pledged to work together to bring down the cost of green technology, we’ll hear more about one of those solutions: batteries. Batteries are key to getting off fossil fuels. And a mineral called lithium is a key ingredient in those batteries. In this episode, Marketplace’s Kimberly Adams speaks with Molly about what’s happening near California’s Salton Sea.