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 2018 Climate Action Plan (2018 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 the 26 measures in the 2018 CAP to reduce greenhouse gas emissions.

On September 30, 2020, the County of San Diego Board of Supervisors voted to set aside its approval of the County’s 2018 Climate Action Plan (2018 CAP) and related actions because the Final Supplemental Environmental Impact Report (2018 CAP SEIR) was found to be out of compliance with the California Environmental Quality Act (CEQA). In response to this Board action, staff are preparing a Climate Action Plan Update (CAP Update) to revise the 2018 CAP and correct the items identified by the Court within the Final 2018 CAP SEIR that were not compliant. The 2018 CAP and EIR are being revised in partnership with residents, and business and environmental groups. The County continues implementing sustainability measures to effectively reduce greenhouse gases (GHGs) as part of its ongoing commitment to the environment. The court ruling struck down part of the 2018 CAP’s EIR but did not find fault with its 26 GHG reduction measures. Learn more about the CAP Update.


The County reduced 160,743 metric tons of carbon dioxide equivalent by implementing 2018 Climate Action Plan measures in 2020. Find status updates on all 26 measures on the 2018 CAP dashboard, and read the full 2020 Report on Climate Action Plan Progress to learn more.


reduction in County fleet emissions below 2014 levels


rain barrels distributed through the County Watershed Protection Program's discounted rain barrel program


trees planted by the Department of Parks and Recreation


homes with solar installations permitted through the County's Online Permits platform


acres of open space conserved through the Multiple Species Conservation Program


The 2018 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


Demonstration Garden Opens at the County Operations Center The County’s LiveWell San Diego Food System Initiative, in collaboration with its master gardeners, have developed a community demonstration garden in the heart of the County Operations Center (COC). This 400-square foot demonstration garden plot will be a resource to all who visit the COC, serving as a meeting spot, open space, and educational tool. Continue Reading Article


County Seeks Public Input on Development of North County Plan The County is developing the North County Multiple Species Conservation Plan to preserve native habitats and wildlife in the northern portion of the unincorporated county. In October, the North County Plan Stakeholder Working Group met to review and discuss components of the draft plan. Continue Reading Article


Updates to the Climate Action Plan Update Project Schedule The County is committed to crafting its Climate Action Plan Update using the most current data available. Learn how the CAP Update project schedule is being revised to use the most up-to-date transportation modeling data. Continue Reading Article