San Diego's Carbon Footprint Rating

The San Diego metropolitan area fared well in a national ranking of urban regions based on “carbon footprints” generated by their residential buildings and highway traffic. The region placed 10th behind well-known environmental leaders such as Seattle, San Francisco and Portland, Ore.

The analysis was published by the Brookings Institution, a nonprofit think tank based in Washington, D.C. The group assessed the nation's 100 largest urban areas based on their per capita carbon emissions in the two categories. It did not include emissions from commercial buildings or industry.