We have posted the latest rankings of U.S. cities on the OurGreenCities web site. This is the most recent update since 2007. This new set of rankings considers the 54 largest cities in the country plus Pittsburgh (currently the 59th largest city). As before, the rankings are based on an assessment of how many of the 38 different specific policies and programs each city has enacted and implemented. This is the only set of rankings that explicitly looks at local policies and programs, and is truly city-based (rather than metropolitan, county, or regionally based). The cities of Portland, Denver, and Seattle are tied for first place. Check the web site for more information, and let me know if you have any questions about the methodologies employed in these assessments.