Make the Case for Tree Cities of the World Status
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.
Water security is dependent on forests, estimating that forests provide 75 percent of the world’s accessible freshwater.
Food and Agriculture Organization of the United Nations
Switzerland saves roughly $64 million per year by using freshwater from forested watersheds that requires no treatment.14
United Nation Economic Commission for Europe, 2004
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
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
People experienced reduced psychological distress when they had access to quality green spaces.
European Journal of Public Health, 2015
Office workers with a view of trees report significantly less stress and more satisfaction.
Chungbuk National University, South Korea, 2007
Children living near natural green spaces have lower life stresses than those with little nearby nature.
Environment and Behavior, 2003
In Baltimore, a 10% increase in tree canopy corresponded to a 12% decrease in crime.
University of Vermont and U.S. Forest Service, 2012
Among minor crimes, there is less graffiti, vandalism and littering in outdoor spaces with trees as a part of the natural landscape than in comparable plant-less spaces.
University of Washington
A program of: