Trees are a critical part of healthy communities. Making the case for more trees and tree care in your town or city may be as simple as sharing some statistics about the benefits.

Clean Water

Clean Air

Stormwater Management

  • Trees reduce stormwater runoff by intercepting rainfall, evapotranspiration, and filtering and storing water in soil and forest litter. Center for Watershed Protection, 2005
  • A single mature deciduous tree can intercept 500-760 gallons of rainfall per year, and a mature evergreen tree can intercept more than 4,000 gallons per year. Penn State Extension, 2017

Lower Urban Temperatures

  • Trees can reduce surrounding air temperatures as much as 4.0° C during the summer. Building and Environment, 2012
  • Tree shade lowers surface temperatures in parking lots by approximately 20° C. Journal of Arboriculture, 1999
  • CO2 Absorption to Reduce Effects of Climate Change
  • During one year, a mature tree will absorb approximately 22 kilograms of carbon dioxide from the atmosphere and release oxygen in exchange. European Environment Agency

Better Mental Health

Crime Reduction