Urban planners and researchers across the U.S. often point out the benefits of trees in city life. The City of Phoenix has a goal of covering a quarter of the city with a tree canopy by 2030.
In addition to providing shade, urban trees remove pollution from the air. A recent Forest Service study estimated the air-cleaning effect of trees in New York City saves about eight lives a year.
And as Matt Richmond from Here & Now contributor WCPN Ideastream reports, researchers are beginning to closely examine how much stress urban trees can handle.
Matt Richmond, reporter for WCPN Ideastream in Cleveland.