This same tree releases enough oxygen to support two human beings. Associated with this savings is a projected reduction of nine million tons per year of carbon dioxide emissions from power plants.
Trees play a critical role in reducing air pollution in urban environments.
David J. Nowak and E. Gregory McPherson, United States Forests Service Northeastern Forest Experiment Station, 1993. Texas Parks and Wildlife . Trees create a much more livable environment. Fox, Tom. 1990. The Neighborhood Open Space Coalition, New York, New York.