Carbon Dioxide (CO2)
CO2 is an important compound for plant and animal life, as part of the carbon cycle, and as a greenhouse gas (GHG). CO2 is the primary GHG emitted in California, accounting for 84% of total GHG emissions in 2014.
Sources of CO2 in California
Transportation is the single largest source of CO2 in California; which is primarily comprised of on-road travel. Electricity production, industrial and residential sources also make important contributions to CO2 emissions in California.