In the NewsReutersMarch 25, 2020

Dangerous heat and humidity could affect 1.2 billion people by the turn of the century if global warming goes unchecked, scientists say

The number of people worldwide struggling with extreme heat and humidity by the end of the century could be more than four times as many as today if planet-warming emissions continue to rise, hiking economic losses and health costs, scientists have warned. Spending on mental health, in particular, could soar as more families have trouble sleeping and working, and heat aggravates existing mental health problems, one of two new studies found. "Heat and humidity extremes have real impacts on health and productivity," said Bob Kopp, co-director of the Climate Impact Lab, director of the Institute of Earth, Ocean & Atmospheric Sciences at Rutgers University, and an author of one of the studies. "What our work shows is that there is a real increase in the frequency of these rare heat and humidity extremes, and limiting global warming is the best measure we can take to prevent them," the climate scientist told the Thomson Reuters Foundation.