Many cities are trying to reduce dependency on cars by encouraging walking or cycling as well as using public transportation.
The Institute for Transportation and Development Policy, a New York-based institution that promotes sustainable transportation, awards yearly prizes to cities that best promote or represent this principle.
The 2014 winners were Buenos Aires, Argentina; Suwon, South Korea; Lanzhou, China and Indore, India.
These four cities, especially Buenos Aires, are demonstrating a firm commitment to reducing transportation-related pollution by encouraging sustainable transportation policies. For more information, our source details the actions that each city is taking.