Sonja Dümpelmann of the Stuart Weitzman School of Design was interviewed about the history of street trees and urban forestry. “This isn’t scientifically proven,” she said. “But I think if people care about trees, they also tend to care about people.”
https://www.washingtonpost.com/lifestyle/home/appreciating-the-need-for--and-the-beauty-of--the-urban-forest/2019/12/10/bae100e6-17a1-11ea-9110-3b34ce1d92b1_story.html The Washington Post