County of San Diego
Climate Action Plan

The County of San Diego is committed to helping communities thrive while protecting the region’s unique and diverse natural resources. One of the County’s sustainability tools is the Climate Action Plan (CAP), which contains a series of measures to reduce greenhouse gas emissions over the next 30 years. These measures are administered through multiple County departments and focus on activities that occur within the unincorporated area of the region, and within County-owned facilities, regardless of location.

The County is actively engaged in implementing the CAP and its 26 measures to reduce greenhouse gas emissions.


The County reduced 103,643 metric tons of carbon dioxide equivalent by implementing Climate Action Plan measures through 2018. Find status updates on all 26 measures on the CAP dashboard, and read the full 2018 Annual Monitoring Report to learn more. 


The CAP reduces greenhouse gas emissions through 26 enforceable, quantifiable, and achievable measures within five emissions sectors. Roll over and click on each button to learn more. 


Built Environment & Transportation


Solid Waste

Water & Waste Water

Agriculture & Conservation


County of San Diego climate action stories, news, and updates


Expanding the number of trees in San Diego County The County of San Diego is working to increase the number of trees at County parks and open space preserves. As part of its Climate Action Plan, the County is implementing a tree planting program for the unincorporated county to plant a minimum of 3,500 trees annually! Continue Reading Article


Strong branches: How trees benefit our everyday lives Trees are a beautiful part of San Diego’s landscape wherever they are found – on urban streets downtown, lining boulevards, and peppered throughout canyons, open spaces, and on mountainsides that crisscross the county. Trees offer us so many benefits across all areas of our lives, it is easy to overlook some of them. Learn more about a few of the benefits of trees, including economic, environmental, health, and social benefits. Continue Reading Article


Landscaping for your climate zone with native plants saves water and attracts friendly visitors! Did you know that you can see more species of birds in San Diego County than in any other county in the United States? From the coastal prairie zone to the desert zone, our region supports a wide range of climactic conditions. Understanding these climactic zone conditions help to determine how well different types of landscaping will survive and thrive in your yard. Continue Reading Article