Green Communities Research Center
Green, or vegetated, roofs can help reduce the urban heat island effect, heating and cooling costs, and stormwater runoff. They can be an amenity in an urban environment as well as a strategy to meet green building goals.
Interested in green roofs? Check out the March/April 2008 PAS Memo "Planning for Rooftops: The Benefits of Green Roof Infrastructure," and, from Planning magazine, "Green Roofs: A Way to Start Small" and "Green Is Coming Out on Top."