Extreme heat will put millions more older adults at risk in the future

By 2050, as many as an additional 246 million adults 69 and older could experience temperature extremes that exceed 37.5° Celsius.

Nearly a quarter of the global population of older adults at mid-century could face extreme heat, putting their health in danger.. The new projection suggests that more than 23 percent of the global population of these older adults — largely concentrated in Africa and Asia — will encounter this intense heat, compared with 14 percent today.

“It’s this kind of perfect storm of biological aging, social loneliness and then cognition that make so much worse for older people,” says Deborah Carr, a sociologist of aging at Boston University. In terms of acute heat, there will be an increase worldwide in the number of days each year that exceed 37.5° C, from an average of 10 days to around 20. There will also be a greater upper bound to how high temperatures can reach during extreme heat, depending on the region. “Both the frequency and the intensity will increase as a result of climate change,” says Giacomo Falchetta, a climate change researcher at the Euro-Mediterranean Center on Climate Change in Venice, Italy.

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