Fire up your barbecue briquettes in a different way. Try an electric probe or chimney starter. Contact your elected officials and tell them you care about clean air. Think high-fuel efficiency and low emissions. Don't top off the gas tank.
Spilled fuel is a big contributor to air pollution.
Keep your car tuned and smog checked. Report gross polluters. Photos were reprinted with permission from Ken Lubas, Kathleen Campbell, The Press Enterprise, National Archives, Los Angeles Times, Clayton Industries, and the L.A. Times Collection, Department of Special Collections, at UCLA Library.