The 15 most sustainable U.S. cities

by Claire Thompson
16 Jul 2009 1:54 PM

Seattle is the most sustainable big city in the nation, according to a list compiled by Smarter Cities, an NRDC project that looks at the progress American cities are making toward going green. Not surprisingly, San Francisco and Portland are the runners-up.

Using data from the EPA and the U.S. Census Bureau, as well as some voluntary survey responses from city governments, the project identified the top 15 large, medium, and small cities according to 10 different environmental criteria, from air quality to recycling to transportation.