http://www.greenecobookmarks.com/ Recent bookmarks posted to Property Bookmarks 60 http://www.worldgreenroof.org/news-Policy-and-planning.html The green roof policy all over the world varies much. The most formal structure can be found in Germany. Building code and nature conservation act are a good basic to support green roofs in Cities. geoffd99 Tue, 16 Dec 2008 14:47:16 +0000 city energy garden green roof planning water