6. Formerly redlined areas now are often urban heat islands

Illustration of city buildings with an abstract sun.

Illustration: Shoshana Gordon/Axios

Heat is typically the No. 1 weather-related killer in the U.S. — but depending on the neighborhood, some city residents experience cooler, more manageable temperatures than others.

Why it matters: All cities trap heat, with their darkly colored asphalt and energy absorbent buildings — a phenomenon known as the Urban Heat Island effect. However, within these heat islands, some areas are consistently hotter.

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