Moontanman Posted August 5, 2009 Report Posted August 5, 2009 Greenroofs Can Save Cities Millions Of Gallons Of WaterScienceDaily (Aug. 4, 2009) — Having a garden on your roof isn't just nice for a garden party; it can make your city more environmentally friendly. Many American cities are beginning to incorporate greenroofs into their planning ordinances because they recognize that, planting a rooftop garden can offset heat, increase city biodiversity and decrease stormwater runoff. This runoff can be problematic in cities where rainwater is funneled by streets and parking lots directly into streams, carrying with it chemicals and debris and increasing the risk of flash floods. Greenroofs Can Save Cities Millions Of Gallons Of Water Quote
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