Study: Heat-Related Deaths on the Rise in US Since 2016

The number of heat-related deaths in the US has more than doubled in the past quarter century, increasing from roughly 1100 in 1999 to more than 2300 in 2023, a study in JAMA Network Open found. Heat-related mortality rates have been rising steadily since 2016, the researchers noted, with the highest number recorded in 2023, the hottest year on record.