This article is adapted from Vince Beiser’s “Power Metal” newsletter.

If you’ve heard anything about the dark side of the shift to renewable energy and digital tech—one of the main topics of my new book, Power Metal: The Race for the Resources That Will Shape the Future—you’ve probably heard about the children working in cobalt mines in the Democratic Republic of Congo (DRC). That particular outrage has been covered by major international news outlets, human rights organizations and another recent book, Cobalt Red. But it turns out there are many other places where children, as well as enslaved adults, are producing the metals that go into our electric cars and cell phones.

Cristina Dorador has decided that science is not enough. The Chilean microbiologist’s decades of research have convinced her that the unique ecosystem of her country’s Atacama desert is threatened by ever-expanding lithium mines. She has spent years trying to convince the nation’s leaders to protect the place, with little success.

Now, she’s seizing a historic opportunity: Her election to Chile’s constitutional assembly in 2021 has given Dorador a chance to try to change not only Chile’s lithium industry, but the country’s whole approach to natural resources. But will her endeavor have broader implications for the worldwide shift to renewable energy?

Times are good for Fey Wei Dong. A genial, middle-aged businessman based in Hangzhou, Fey says he is raking in the equivalent of $225,000 a year from trading in the humblest of commodities: sand.