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Geography

How Urbanization Affects Local Microclimates

Quick fact

On a hot summer day, the center of a large city can be 1–3°C (1.8–5.4°F) warmer than the surrounding rural areas, a phenomenon known as the urban heat island effect.

Why this is interesting

Stepping from a shady park into a city street, you might feel a sudden blast of heat. Why do cities often feel like islands of warmth surrounded by cooler countryside?