A recent study published in Nature found that 37 percent of heat-related deaths are due to climate change. Dr. Renee Salas is seeing this in the emergency room of Massachusetts General Hospital. She's treating more and more patients for heat-related illnesses like heat stroke and intensified allergies. Today, she gives us a view into her work at the intersection of human health and climate change; plus, she envisions a new health care system that takes climate change into account.To read more on this, see our episode page for links.Reach the show by emailing shortwave@npr.org.