After storms and other climate disasters, legions of workers appear overnight to cover blown-out buildings with construction tarps, rip out ruined walls and floors, and start putting cities back together. They are largely migrants, predominantly undocumented, and lack basic protections for construction work. Their efforts are critical in an era of increasing climate-related disasters, but the workers are subject to hazards including accidents, wage theft, and deportation. “Right now, there is a base camp for the National Guard; FEMA officials in Louisiana are staying in hotels,” Saket Soni, the founder of the nonprofit group Resilience Force, tells Sarah Stillman. “But the workers who are doing the rebuilding with their hands are sleeping under their cars to protect themselves from rain.” Stillman travelled to Louisiana, to the parking lot of a Home Depot, to report on Soni’s effort to organize and win recognition for these laborers as a distinct workforce performing essential work. “These years ahead,” she notes, “are going to bring more brutal hurricanes, more awful floods, more terrifying wildfires, and heatwaves—more than any of us is really prepared to handle. … And what’s at stake is not just these workers’ fates but also our collective shared survival.”