A Green Solution To Improve Cities

"In some cities...volunteer groups... are planting and caring for trees on public land, and educating the public about why they matter. Trees are natural pollution-control devices...[trees] trunks help slow the runoff of storm water.They also provide sound buffering, shade, and measurably cooler temperatures on hot summer days, and breeding and roosting places for local and migratory birds, whose habitat has been disappearing.The savings that result from these environmental benefits can really add up. Research has shown that substantial increases in the number of city trees can reduce storm-water and pollution-control expenditures by millions of dollars."

Thanks to Nandita Godbole