A new report could make a tree-hugger out of anybody. According to the study in the journal Environmental Protection, trees actually saved more than 850 lives in 2010 and prevented over 670,000 U.S. cases of acute respiratory syndrome in the same year by removing air pollutants. Although trees are noted in the study to remove less than 1 percent of air pollution, that is enough to secure these health benefits. The study values the human health costs saved at $6.8 billion.
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