Canopy Cover, Heat Mapping, and Environmental Justice

Trees are more than decoration — they’re living economic assets, with measurable costs and benefits for cities and neighborhoods. Zachary Crockett takes a walk on the shady side of the street.

• SOURCES:
  • Geoffrey Donovan, owner of Ash & Elm Consulting.
  • Jana Dilley, urban forester for the city of Seattle.
  • Kathleen Wolf, social scientist, former researcher at the University of Washington.

• RESOURCES:
  • "Extreme Heat Is Worse For Low-Income, Nonwhite Americans, A New Study Shows," by Deepa Shivaram (NPR, 2021).
  • "US Urban Forest Statistics, Values, and Projections," by David Nowak and Eric Greenfield (Journal of Forestry, 2018).
  • "The role of trees in urban stormwater management," by Adam Berland, Sheri Shiflett, William Shuster, Ahjond Garmestani, Haynes Goddard, Dustin Herrmann, and Matthew Hopton (Landscape and Urban Planning, 2017).
  • "Urban trees and the risk of poor birth outcomes," by Geoffrey Donovan, Yvonne Michael, David Butry, Amy Sullivan, and John Chase (Health & Place, 2011).
  • "Calculating the Green in Green: What's an Urban Tree Worth?," by Gail Wells (Science Findings, 2010).
  • "The Effect of Trees on Crime in Portland, Oregon," by Geoffrey Donovan and Jeffrey Prestemon (Environment and Behavior, 2010).

• EXTRAS:
  • i-Tree Tools.

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