Just over a year ago we wrote about plans in Beijing to plant grass and vegetation on the top of buildings. Now Lloyd Alter points to his home town's plans...

Just over a year ago we wrote about plans in Beijing to plant grass and vegetation on the top of buildings. Now Lloyd Alter points to his home town’s plans to save $300 Canadian dollars by decking 8% of their roofs in green stuff. Vegetation on roofs should help stormwater management, offer combined sewer overflow reduction, enhance building energy savings and reduce urban heat islands.

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