This month, Earth hit its hottest days recorded in history. But even on the warmest days, millions of workers in the U.S. labor in heat that is increasingly hazardous to their health.This month, the Biden administration proposed a rule that, for the first time, would protect such workers, whether their jobs are indoors or outdoors. The proposal sets out two heat index triggers that would apply nationally and require employers to offer drinking water, among other safeguards.Yet some employers, in areas such as agriculture, construction and tourism, are resisting the changes, arguing that they would make their sectors less competitive.Today on “Post Reports,” Elahe Izadi speaks with climate change reporter Anna Phillips about the federal government’s efforts to protect workers.Today’s show was produced by Trinity Webster-Bass, with support from Elana Gordon. It was edited by Monica Campbell and mixed by Sean Carter. Subscribe to The Washington Post here.