Benefits of City Trees

Trees Conserve Energy

  • A young, healthy tree is equivalent to ten room-size air conditioners operating 20 hours a day. — USDA
  • $4 billion in energy would be saved if all the empty street tree spaces in America were filled. — Natl Wildlife Federation
  • Trees planted around buildings can reduce air conditioning needs by 30-50%. — USDA
  • Windbreak trees can save 20 – 50% in energy used for heating. — USDA
  • Shade from trees could save up to $175 or per year (per structure) in air conditioning costs. — Dr. Lowell Ponte
  • Just three well-placed trees around a home can lower air conditioning bills by up to 50%. — Natl Arbor Day Foundation
  • Forested property is 2 to 4 degrees cooler during the summer and 1 to 2 degrees warmer during the winter. — USDE

Trees Stimulate Economic Vitality

  • Mature trees, can increase property values up to 20%. — Management Information Services/ICMA
  • Trees in retail areas attract new business, tourism, and shoppers. — The National Arbor Day Foundation
  • Apartments with trees rent more quickly and tenants stay longer. — The National Arbor Day Foundation
  • Property in a wooded setting is more valuable to sell or rent. — The National Arbor Day Foundation
  • Nationally, the 60 million street trees have an average value of $525 per tree. — Management Information Services

Trees Clean the Air

  • One acre of forest absorbs six tons of CO2 and puts out four tons of oxygen–the annual needs of 18 people. — USDA
  • A tree can absorb as much as 48 pounds of carbon dioxide per year, and can sequester one ton of carbon dioxide by the time it reaches 40 years old. – NCSU
  • One large tree can provide a supply of oxygen for two people. – McAliney, Mike
  • Trees remove sulfur dioxide and nitrogen oxide, two major components of acid rain and ozone pollution, from the air. City trees help to counter the urban heat island effect which can significantly lower smog production. — USDE
  • Filling the estimated 200 million vacant street tree spaces in America could remove 33 million more tons of CO2 from the air every year. — Natl Wildlife Federation

Trees Clean and Conserve Water

  • Tree root systems prevent soil erosion to reduce the flow of sediment and chemicals into streams and oceans. — USDA
  • Tree leaves absorb rainwater and can reduce peak storm runoff by 10 to 20%. — USDA
  • When trees slow the rate at which rain hits the ground, the ground water supply is recharged. — USDA
  • Water quality is improved by tree leaves filtering pollutants from falling rain. — USDA

Trees are Good for People

  • Trees create relaxation and well being resulting in significant stress reduction within five minutes. — A&M University
  • Trees can reduce wind speeds by up to 85%, compared to treeless areas. — USDA
  • Trees reduce noise pollution by acting as a buffer and absorbing urban noise. — USDE
  • Studies show that a 100 foot wide and 45 foot tall patch of trees can reduce noise levels by 50%. — USDE
  • Trees bring nature to people in highly urbanized areas by providing homes for animals. — USDA
  • Patients in rooms with a view of trees have shorter postoperative hospital stays. — A&M University
  • Research indicates that trees can play an important role in reducing urban violence. — University of Illinois
  • The “greener” a child’s setting, the milder their AD/HD symptoms in general. — University of Illinois
  • Domestic violence is reduced in residential areas landscaped with trees. — A&M University
  • Workers are more content with their jobs when trees are visible from work spaces. — A&M University
  • Children exhibit more healthy play patterns in spaces with trees and grass than in “built” spaces. — University of Illinois
  • Tree planting empowers children:

“After the planting, we sat around Marcie the Marvelous Tree. I thought about how big she’d grow, and how much good one tree could do in the future. Realizing what one individual could accomplish by planting one tree gave me a sense of power I didn’t have before. I didn’t feel my individual efforts could make a difference until that moment.” – Tara Church, Founder at age 12