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urban heat island

NASA satellite thermal image comparing the urban heat island intensity of Buffalo, New York, and Providence, Rhode Island, color-coded from blue (cooler) to yellow (hotter)

Why Nighttime Heat Is Rising Faster Than Daytime Highs in US Cities

Cities don't just run hotter than the countryside — they stay hotter after dark, and the nighttime gap is often wider than the daytime one.

Climate  · 26 Jul 2026, 09:22  · Maya Calder