This indicator tracks San Diego's annual greenhouse gas emissions from on-road transportation — the cars, trucks, and other vehicles traveling on city streets and highways. Transportation is the largest source of greenhouse gas emissions in San Diego, making it a critical area for climate action.
Reducing these emissions requires a combination of approaches: more people choosing to walk, bike, or take transit instead of driving; more vehicles on the road being electric; and people needing to travel less overall through flexible work arrangements and well-connected neighborhoods.
IMPORTANT: While the chart shows targets for 2030 and 2035 (green circles), these are illustrative projections, not formal commitments. The City's official climate targets are for total citywide emissions reductions, not for any individual sector.