Why Save Trees?

Trees are valuable;

  • According to the International Society of Arboriculture, a specimen shade tree may be worth up to $38 per square inch of trunk cross section1. For example, a tree two feet in diameter could be worth as much as $17,176 or a three-foot tree up to $38,646 using the Trunk Formula method of valuation.
  • Property values go up with trees. Real estate agents and homebuyers typically assign 10% to 23% of a residence’s value to the trees on the property2.

Trees save energy three ways:

  • Shade. In a Miami study, the temperature of an unshaded west wall ranged from 112 to 117°F; a similar surface shaded by one large tree ranged from 87° to 92°F; a reduction of more 20%3. Shade also reduces heat reflected by concrete or asphalt surfaces.
  • Natural “air conditioning.” Evaporation of moisture from leaves cools air under a tree’s canopy by 6 to 8°F. Trees can reduce daily air conditioning cost by as much as 50%.4
  • Reduced air infiltration. As windbreaks, trees can save up to 30% of winter heating bills.

Trees clean the air. Over a year’s time, one acre of growing trees will absorb all the carbon dioxide produced by an automobile driven 26,000 miles.5 Trees also trap and remove particulates from the air.

Trees help reduce storm water runoff and soil erosion.

Trees make the neighborhood. They cut traffic noise, give a home to songbirds and small mammals, restore our health and spirits and make our community the place we want to live.


1 Valuation of landscape trees, shrubs and other plants, 7th edition, International Society of Arboriculture, Savol IL, 1988.

2 Morgan, Robin. 1991. Technical guide to urban and community forestry. U.S. Forest Service, p. 4.

3 The Landscaping Fact Sheet, Texas Energy Extension Service, Texas A&M University.

4 Parker, J. 1981. Uses of Landscaping for Energy Conservation, Florida International University, Miami.

5 Benefits of Urban Trees, U.S. Forest Service, 1720 Peachtree Rd., NW, Atlanta, GA 30367-9102.

For more information on tree preservation, please visit www.treescape.org

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