<p>Some Philadelphia neighborhoods with few trees can be 15 to 20 degrees hotter than more leafy zip codes. As climate change heats up cities, how can we cool them down? </p>

Some Philadelphia neighborhoods with few trees can be 15 to 20 degrees hotter than more leafy zip codes. As climate change heats up cities, how can we cool them down?

Heat islands, urban trees and other cooling solutions for hot cities

Radio Times is an intelligent talk show dealing with issues of the Delaware Valley, as well as issues of national and global concern. Radio Times is produced by WHYY in Philadelphia.

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Heat islands, urban trees and other cooling solutions for hot cities

Heat islands, urban trees and other cooling solutions for hot cities

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