Globe and Mail: The Canadian Press Published on Sunday, Aug. 15, 2010 3:45PM EDT Last updated on Sunday, Aug. 15, 2010 6:23PM EDT Vancouver has vowed to become the greenest city in the world by 2020. New condos in Toronto are going up without any parking spaces. Regina is doing away with one-way streets to improve public transit access in a revitalized downtown. And in Montreal’s trendy Plateau Mont-Royal borough, Mayor Luc Ferrandez is doing his best to bring a little more country into the …