7 Most Sustainable Cities  in America 

7. Washington, DC

7 Most Sustainable Cities  in America

6. Fremont,  CA

7 Most Sustainable Cities  in America

5.  Honolulu,  HI

7 Most Sustainable Cities  in America

4. Irvine, CA

7 Most Sustainable Cities  in America

3. Portland, OR

7 Most Sustainable Cities  in America

2. San Francisco, CA

7 Most Sustainable Cities  in America

1. San Diego,  CA

7 Most Sustainable Cities  in America

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