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Environmental Science

The Phenomenon of Urban Heat Islands in Megacities

Quick fact

During summer evenings, the air in a megacity can be up to 10 degrees Celsius warmer than nearby rural areas, a phenomenon known as the urban heat island effect.

Why this is interesting

You step off the plane into a megacity, and it instantly feels hotter than the weather forecast promised. Why are cities not just busy, but literally radiating more heat than their surroundings?