The Verdict Is In
People who live in dense urban areas like Chicago, downtown L.A., and San Francisco produce dramatically lower levels of greenhouse gas emissions than people who live in outlying suburbs. Full-size version of the Chicago map here. (Courtesy of Gristmill.)
The hell with places like Chicago and San Francisco that have real rapid transit. I want to produce less greenhouse gas emissions because I'm so damn poor, like the place with the world's best bus service, Curitiba, Brazil.