The Download: polycrisis support networks and a hydrogen gold rush

Plus: Republicans fear anger over data centers will cost them in elections. Sometime in the late 2000s, six-year-old Pim Sullivan-Tailyour was sitting in the back of a car in Thailand when she saw a mountain that had been quarried away. It was the first time she recognized that humans could alter the world for the worse. She carried that knowledge with her, later joining an online group for young people worried about climate change. "I realized that I wasn't alone," she says. She was right: global surveys have found that most kids are anxious about the state of the world.