More than 356,000 people died in 2019 as a result of extreme heat and that number is likely to grow, according to a study published in The Lancet this week.
The Global Burden of Disease review, funded by the Bill & Melinda Gates Foundation, found that while cold temperatures still cause a greater number of deaths, mortality rates attributable to heat are growing more quickly, particularly in hotter regions of the world.
"This is very concerning, particularly given the risk of exposure to high temperatures appears to have been increasing steadily for decades,” said co-author Katrin Burkart from the University of Washington.