Executive Order S-3-05, issued in 2005, established GHG reduction goals for the State of California to reduce GHG emissions to 1990 levels by 2020 and to 80 percent below 1990 levels by 2050.
In 2006, the Governor signed Assembly Bill (AB) 32, the California Global Warming Solutions Act, into law. AB 32 established a target to reduce statewide GHG emissions to 1990 levels by 2020 and required the California Air Resources Board to develop a policy plan for reaching the 2020 emissions target. The resulting AB 32 Scoping Plan, adopted by the California Air Resources Board in December 2008, called on local governments to reduce GHG emissions from municipal operations and community-wide activities by approximately 15 percent by 2020.
In 2012, the City of San Marcos completed a comprehensive update to its General Plan, which includes a number of goals, policies and action items aimed at reducing GHG emissions from both City operations and the community as a whole.
One specific implementation action from the General Plan required the City to develop a Climate Action Plan for reducing greenhouse gas emissions consistent with AB 32 and Executive Order S-3-05. The City adopted the Climate Action Plan on September 10, 2013 to mitigate emissions and climate change impacts associated with the General Plan.