Tree Canopy

• Trees reduce energy used for cooling. 
• Trees reduce infrastructure needed to manage stormwater. 
• Trees improve air quality.

Goals:

• The short term goal is to achieve 40% urban tree canopy as recommended by American Forest.
• The long term goal is to achieve 47% urban tree canopy as recommended in the finding of the Urban Forest Canopy Cover in Portland Oregon 1972-2002 Final Report by Joseph Poracsky and Michael Lackner at the Portland State University Geography Department.

Objectives:

• The objective is to plant 150 new trees every year.

Sustainability Indicators:

• Poracsky and Lackner recommend 12% tree canopy cover for commercial areas.  Washington County considers schools to be commercial.  Catlin Gabel School exceeds the 12% recommendation.
• Catlin Gabel School has achieved and is maintaining 40% tree canopy. 

Campus Tree Canopy