How exactly is “sustainability” ranked? From the press release:
Based on 16 economic, environmental and green/clean tech categories, the SustainLane U.S. City Rankings factor in each city’s ability to maintain healthy air, drinking water, parks and public transit systems, as well as a robust, sustainable local economy with green building, farmers markets, renewable energy and alternative fuels. Introduced in 2005, the City Rankings have been a catalyst for change. In fact, both the median and average scores have increased significantly across all cities surveyed since 2005.
A full explanation of the methodology can be found here.
Here are the top 10, with 2006’s rankings in parenthesis:
1- Portland (1)
2- San Francisco (2)
3- Seattle (3)
4- Chicago (4)
5- New York (6)
6- Boston (7)
7- Minneapolis (10)
8- Philadelphia (8)
9- Oakland (5)
10- Baltimore (11)
And here’s a related story, from Kaid Benfield’s Blog at the NRDC website: Portland’s shrinking carbon footprint: revitalization and walkable neighborhoods make the difference