For the first time, humans were exposed to a deadly combination of heat and humidity. Here's how long they lasted
For the first time, humans were exposed to a deadly combination of heat and humidity. Here's how long they lasted
Heatwaves loom as a growing threat to humanity in a warming climate. This summer alone, in the northern hemisphere, thousands have died during extreme heat events. It's driving researchers to find out more about the point when heat turns deadly.