Heat Domes Threaten Health, Infrastructure, and Power Stability Across the U.S.

By Douglas McIntyre  •  May 20, 2025

Douglas McIntyre, Editor-in-Chief at Climate Crisis 24/7, reports that an early-season heat dome is stretching from Southern California to Louisiana. The extreme heat threatens public health, outdoor laborers, and the stability of the already fragile U.S. power grid. With temperatures and heat indexes rising well above safe thresholds, blackouts and serious disruptions are likely as energy demands surge.

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