Q&A: Americans are underestimating the dangers of extreme heat

Heat-related deaths in the U.S. have surged more than 50% since 2000 as the climate warms and temperatures rise to record-breaking levels.

This July alone, more than half of Americans were exposed to extreme temperatures as a heat dome descended across the country and the United Nations warned that a Super El Niño, which raises water temperatures in the Pacific, will also intensify temperatures.

Yet, most Americans underestimate the dangers of extreme heat. ...