Map of 50 largest US cities
SustainLane ranked the largest 50 US cities by sustainability factors. At left is a flyover of ranked cities. Below are the top ten cities in 2006.
Top 10 Greenest US Cities *
  1. Portland, OR
  2. San Francisco, CA
  3. Seattle, WA
  4. Chicago, IL
  5. Oakland, CA
  6. New York City, NY
  7. Boston, MA
  8. Philadelphia, PA
  9. Denver, CO
  10. Minneapolis, MN
  11. * Ranked against the 50 largest US Cities.
As seen on: MSN, Yahoo! Green, CBS, and The Weather Channel.