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Friday, October 24, 2008
Another Small,But Easy, Step
White roofs could help keep climate change at bay
This whole climate-change debacle could be significantly slowed down if the world's 100 largest cities installed white roofs and more-reflective pavement, says a new study to be published in the journal Climatic Change.
By bouncing heat away from the Earth, a 1,000-square-foot white roof offsets 10 metric tons of greenhouse gases. Roofs account for 25 percent of the surface of most cities, and pavement makes up some 35 percent.
This could offset 44 billion metric tons of greenhouse gases - more than is emitted by Earthlings each year.
Global Cooling: Increasing Worldwide Urban Albedos to Offset CO2
This whole climate-change debacle could be significantly slowed down if the world's 100 largest cities installed white roofs and more-reflective pavement, says a new study to be published in the journal Climatic Change.
By bouncing heat away from the Earth, a 1,000-square-foot white roof offsets 10 metric tons of greenhouse gases. Roofs account for 25 percent of the surface of most cities, and pavement makes up some 35 percent.
This could offset 44 billion metric tons of greenhouse gases - more than is emitted by Earthlings each year.
Global Cooling: Increasing Worldwide Urban Albedos to Offset CO2
Labels: climate change, greenhouse gases, roof
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