Found this on a thread on space.com...what a cool site! Food for thought:
"A little bit of greenery in urban areas can cool off the hotter and stickier summers that city residents face as a result of global warming, new research show. An additional 10 percent more green space could reduce surface temperatures by 7 degrees Fahrenheit, according to a team of British scientists.
Extra parks and green roofs could counteract the predicted rise in temperature until 2080 when summers are expected to be hotter and drier and winters wetter. Because American cities are more prone than British cities to high summer temperatures, University of Manchester biologist Roland Ennos said green space has an even more important function in the United States.
In cities around the world, planting more grass and trees could keep people more comfortable and reduce air conditioning costs and energy expenditures, Ennos said. "It should make life more pleasant climatically," Ennos told LiveScience. "Many studies have also shown that it improves people's physical and mental health, sense of wellbeing, and can result in reductions in crime." Rest of the story: "
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