Another expert weighed in on the issue.
"We're talking about a situation that is very insidious because it's so subtle," said Solomon Hsiang, who in 2010, as a postdoctoral fellow at Princeton University's Woodrow Wilson School of Public and International Affairs, published a paper raising questions about the impact of global heat stress.
"The problem is that one individual may not necessarily notice if the risk of heat stress makes him or her 1 percent less productive," said Hsiang, now an assistant professor with the Goldman School of Public Policy at the University of California, Berkeley. "But if you make a billion people 1 percent less productive, that will have a huge global impact."
To learn more about heat stress, visit the U.S. National Institutes of Health.
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