 the number of severe heat-related illnesses, the heat strokes, you know, those really stick with you. It's not just Phoenix. Heat now stresses ERs nationwide. But usually it takes months or longer to get the data that shows how stressed they were. And that lag is a real problem. Public health planners and hospitals need that data fast to respond well. Amruta Norisarma is an epidemiologist at Boston University. She says also... It's really hard to motivate action