Top 10 Cleanest Cities Around the World

10. Calgary, Canada

This post features a count down list of top ten cleanest cities of the world. This list has been also compiled an eco-ranking of the cities, taking into account water availability and drinkability, waste removal, sewage systems, air pollution and traffic congestion.

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

Source - Link