'Green roofs' prove even more effective in fighting global warming than first thought
'Green roofs' like these rooftop gardens atop the Rockefeller Center may go a long way to reducing harmful greenhouse gases (Photo: David Shankbone)
Article Summary
‘Green roofs’- urban rooftops covered with plants - are gaining in popularity to help buildings reduce their reliance on air conditioning, and now scientists in Michigan are reporting they could also help fight global warming by eliminating carbon dioxide in cities, more effectively than was first thought.
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