Smogbusters was a national, community-based, government-funded community education program promoting clean air and sustainable transport in Australia from 1994 to 2002. Smogbusters aimed to improve air quality primarily by raising awareness about motor vehicle transport and its negative impacts on health, the environment and communities, and by delivering projects to reduce car use in favor of greener modes of transport. Facing a difficult challenge with limited resources, Smogbusters developed a number of innovative projects and contributed toward a growing push for sustainable urban transport in Australia. This paper describes the Smogbusters program, outlines key Smogbusters projects, discusses the education and social change frameworks underlying the program, and finally highlights some of the lessons learned. It is hoped that the Smogbusters experience can benefit future environmental education and social change programs. (Contains 3 footnotes.)