Future Heat Danger Differs Starkly for Rich and Poor Countries
Lower-income nations will face 10 times as many heat-related deaths as high-income ones, researchers estimate.
A man takes a shower during a hot afternoon in Miami Beach, Florida, in July 2025.
Photographer: Chandan Khanna/AFP/Getty Images
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Poor countries may lose 10 times more people to deaths from high temperatures than rich ones, according to an analysis by Climate Impact Lab.
The research, published Wednesday, is designed to help cities and communities understand and respond to the dangers they face from rising temperatures. It comes as a record-breaking heat wave grips much of the US and as more evidence emerges that global warming is accelerating. While the rising heat is global, its consequences for health vary dramatically depending on affluence.
