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‘Green’ roofs help reduce global warming
Washington, Sept 24 (IANS):
Published on 24 Sep. 2009 11:33 PM IST
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Roofs full of green plants could help fight global warming, say scientists. Kristin Getter, Michigan State University (MSU) horticulturist and colleagues, who conducted the study point out those green roofs, are multi-functional. They found that green roofing an urban area of one million people would capture more than 55,000 tons of carbon. That's an amount "similar to removing more than 10,000 mid-sized SUVs or trucks off the road a year," their research stated. Green roofs reduce heating and air conditioning costs, retain and detain storm water. Green roofs also absorb carbon dioxide, a major greenhouse gas that contributes to global warming, but nobody has measured the impact until now. The scientists measured carbon levels in plant and soil samples collected from 13 green roofs in Michigan and Maryland over a two-year period.

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