The number of people exposed to dangerous heat stress worldwide has risen sharply over the last half century propelled by climate change, according to a study released on Monday as Europe sweltered through a punishing heatwave. Heat stress -- the name given to the hazardous build-up of body heat caused…

A new study finds that global exposure to dangerous heat stress has risen sharply since the 1970s due to climate change.

A new study finds that global exposure to dangerous heat stress has risen sharply since the 1970s due to climate change.