Urban trees can lower local air temperatures by 8-12 degrees Celsius in Central European cities, and up to 12 degrees Celsius at pedestrian level through radiation blockage and transpiration. This isn ...

An urban tree canopy assessment completed for Wilmington using 2016 aerial imagery found the city had 48.1% canopy cover, ...

Cities are living organisms — constantly growing, shifting, and reshaping themselves around the people who inhabit them. But not all parts of a city grow evenly. One of the clearest indicators of ...

Vasef is the executive director of Friends of Trees, a nonprofit organization that has planted 900,000 trees and native shrubs in western Oregon and southwest Washington since 1989. The recent report ...