Decarbonization involves removing carbon from a system, primarily targeting natural gas or methane, which are significant sources of greenhouse gas emissions.
In San Diego, emissions from buildings rank second after transportation, largely due to electricity and natural gas consumption. Burning natural gas for heating contributes to 20% of local greenhouse gas emissions and poses risks to indoor air quality and health. Research indicates higher levels of nitrogen dioxide in homes with gas stoves, leading to respiratory issues. Within Communities of Concern, this is in addition to the poor outdoor air quality that impacts residents of all ages. Implementing policies to reduce natural gas usage can enhance air quality and health outcomes, particularly for vulnerable children and adults.
The City is adopting a three-pronged approach to building decarbonization (see the Measures below). Firstly, it will focus on eliminating fossil fuels in new construction projects. Secondly, it will encourage both commercial and residential building owners to enhance overall energy efficiency and transition from natural gas appliances to electric ones wherever feasible. Thirdly, the City will set an example by decarbonizing all its own facilities. With every approach, the City’s partnership with San Diego Community Power means electricity will continue to get cleaner as more renewable energy sources are brought on-line.
Scroll down to see a graph showing the City's emissions due to electricity and natural gas use.