The growth of the green roof industry in North America has grown by 35% in the last year. Chicago is still in the lead, with over 548,000 square feet installed in 2008, while Toronto has just passed legislation requiring a 50% coverage of the area of all new green roofs to be covered with greenery. For the full article click here.
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Big Growth in Green Roofs in U.S. and Canada
Greening the City 
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