Fun Facts About Trees
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Trees and the Environment

  • Trees renew our air supply by absorbing carbon dioxide and producing oxygen.
  • The amount of oxygen produced by an acre of trees per year equals the amount consumed by 18 people annually. One tree produces nearly 260 pounds of oxygen each year.
  • One acre of trees removes up to 2.6 tons of carbon dioxide each year.
  • Shade trees can make buildings up to 20 degrees cooler in the summer.
  • Trees lower air temperature by evaporating water in their leaves.
  • Tree roots stabilize soil and prevent erosion.
  • Trees improve water quality by slowing and filtering rain water, as well as protecting aquifers and watersheds.
  • The cottonwood tree seed is the seed that stays in flight the longest. The tiny seed is surrounded by ultra-light, white fluff hairs that can carry it on the air for several days.

News

National Register of Big Trees
Big trees are symbols of all the good work trees do for the quality of the environment-and our quality of life. MORE >>

Green Parking II: Putting Parking Lots to Work
Green parking lots are defined as those that are designed to do environmental work. Parking lots should be designed to reduce the use of energy, improve environmental quality and to ensure more healthy conditions for people. Further, parking lots should be planned and designed to reflect regional landscape types. Plant materials and other materials of construction must be used in ways that will support this objective. MORE >>

Hot Topics
"Hot Topic" press releases fro the USDA newsroom ranging from current pest alerts for specific regions of the United States to new trends in disease prevention and tree and plant care. MORE >>

Don't Move Firewood!

Camping Season is fast approaching. Please remember to not transport firewood. Tree-killing insects and diseases can lurk in firewood. These insects and diseases can't move far on their own, but when people move firewood they can jump hundreds of miles. New infestations destroy our forests, property values, and cost huge sums of money to control. MORE >>

National Tree Benefits Calculator
Make a simple estimation of the benefits individual street-side trees provide. With inputs of location, species and tree size, users will get an understanding of the environmental and economic value trees provide on an annual basis. For more detailed information on urban and community forest assessments, visit the i-Tree website. MORE >>


"He who plants a tree, plants a hope." - Lucy Larcom, "Plant a Tree"

Resources

Benefits of Trees Brochure

Available through the ISA Web store

There's Money in Your Trees
How much are your trees worth? Most likely more than you think. MORE >>

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P.O. Box 3129, Champaign, IL 61826
Email comments & questions to isa@isa-arbor.com