Among the greenist cities to study as models of green energy, farmers’ markets, and bike paths are Vancouver (British Columbia), Portland, San Francisco, New York, Curitiba (Brazil), Bogota, Copenhagen, Amsterdam, Stockholm and Malmo, Berlin, Frieburg (Germany), Feykjavik, Singapore, Adelaide, and Cape Town.[i]
http://sourceable.net/the-worlds-ten-greenest-cities/
http://ecowatch.com/2014/10/24/top-ten-greenest-cities-world/
http://www.greenuptown.com/get-to-know-the-top-ten-greenest-cities-in-the-world-for-2014/
http://www.greenerideal.com/lifestyle/1001-the-10-greenest-cities-in-the-world/