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Guide
The Urban Heat-Island Effect
Urban areas without trees can be "heat islands", with significantly higher temperatures.
Cooler Cities, Greener Future
Planting trees in your city’s urban areas is a winning investment for the city, its citizens, and the environment. Urban areas without trees can become “heat islands,” with significantly higher temperatures than other commercial and residential areas with trees. Adding more trees to your city streets, parks, schools, and downtown areas will help keep communities cooler, reducing energy needs.