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Global Warming 101
The Oprah Winfrey Show  |  October 27, 2005
Trees, nature's air filters


Trees are like natural air filters: They absorb the carbon dioxide and release oxygen back into the air. The average person is responsible for emitting 94 pounds of carbon dioxide every day. It takes at least four trees to offset the carbon dioxide you personally generate in a one-month period. If you want to do something about that, log onto www.americanforests.org. There, you can buy a tree and they will plant it for you.
Printed from Oprah.com on Thursday, May 23, 2013
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