Cities Sweltering Hot at Night: They Are A Hidden Danger To People

By Douglas McIntyre  •  August 22, 2025

Douglas McIntyre, Editor-in-Chief at Climate Crisis 24/7, explains that extreme heat in U.S. cities is no longer offset by cooler nights. Greenhouse gases and urban infrastructure trap heat, leaving vulnerable populations — including the homeless and low-income households — at high risk.

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