America’s greenest cities, based on the percentage of people who think and act in an eco-conscious way AND the percentage of people who do not think and act in an eco-conscious way and may have a negative attitude toward environmental issues; the percentage of people who make a conscious effort to recycle; the number of public-transportation trips per capita for the fourth quarter of 2011; and the percent of households that that use solar heating.

http://xfinity.comcast.net/slideshow/news-greenestcities/?cid=hero_media