Top 10 (G)

Mercer World’s Top 10 Cleanest Cities

10. Calgary, Canada

9. Helsinki, Finland

8. Adelaide, Australia

7. Copenhagen, Denmark

6. Ottawa, Canada

5. Kobe, Japan

4. Honolulu, Hawaii

3. Oslo, Norway

2. Minneapolis, Minn.

1. Wellington, New Zealand

http://www.rediff.com/business/slide-show/slide-show-1-worlds-10-cleanest-cities/20110325.htm