13 Jun '12, 12pm

Study finds that city trees reduce crime: #smartgrowth #urbanplanning

Study finds that city trees reduce crime: #smartgrowth #urbanplanning

The new research adds to a plethora of findings and wisdom about trees. In a fascinating, extended essay in The Wilson Quarterly , Jill Jonnes examines the history of city trees and research on their benefits, noting that a breakthrough study was conducted in Chicago in 1994. The researchers found that the city’s trees could improve air quality by as much as 15 percent, removing measurable amounts of carbon monoxide, sulfur dioxide, nitrogen dioxide, ozone, and particulate matter. Moreover, Chicago’s trees sequestered about 155,000 tons of carbon per year and could absorb far more over time with more planting. Including the benefits of shade in reducing energy needs for air conditioning, each Chicago tree was found to be worth $402 over its life span, over twice the average cost.

Full article: http://switchboard.nrdc.org/blogs/kbenfield/new_evidence_...

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