Your regular host Molly Wood has a new podcast, “How We Survive,” exploring solutions to the climate crisis. In the latest episode, “The Resource,” Molly visits the Salton Sea region of California, its mud volcanoes, moving geyser, and lithium-rich brine — lithium, as in the lithium needed for batteries. Marketplace’s Kimberly Adams talks with Molly about how getting that brine out of the ground is really challenging.