City trees are fifteen times more capable of reducing carbon in the atmosphere than rural trees. (Source: ENN “Urban forests make environmental and economic since,” Thursday, April 11, 2002)
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 Texas Nursery and Landscape Association |
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A typical tree produces about 260 pounds of
oxygen each year. Two trees can supply a
person’s oxygen needs. (Source: David
Nowak, USDA Forest Service; Syracuse, NY)