Cool images from the Center for Neighborhood Technology show that people who live in dense urban areas — downtown San Francisco, the denser parts of L.A., or the Chicago city core — emit less CO2 for transportation. See for yourself:

City Dwellers emit less CO2 for transport

Reader support helps sustain our work. Donate today to keep our climate news free.

I’m showing San Francisco above because it’s closest to my heart, but I think the Chicago map is coolest.

The simple explanation for the pattern is that people who live in denser neighborhoods — places where stores, services, and jobs tend to be a short drive away, or even within walking distance — just drive less. City dwellers also tend to drive smaller cars, which helps, too — see, e.g., this PDF.

Grist thanks its sponsors. Become one.