Jill Jonnes runs through various studies. Among them:
All these data led to the finding that each year New York City’s street trees delivered $122 million in benefits, or about $209 a tree. As New York City’s parks and forestry officials well knew, they received $8 million a year to plant and tend street trees, and spent another $6.3 million to pay personnel. The netbenefit they were getting for all these trees was an impressive $100 million.
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