Departamento ng Kapaligiran ng San Francisco  (San Francisco Department of the Environment) 

San Francisco's Carbon Footprint

Additional Resources
Mayor Mark Farrell Announces Historic Commitment to Net Zero Emissions by 2050 (SF Mayor's Office)
Mayor Lee Announces San Francisco Exceeds New Greenhouse Gas Emissions Reduction Milestone (SF Mayor's Office)
Carbon Footprint Calculator (California Air Resources Board) 


About the GHG Emissions Data - San Francisco's estimated greenhouse gas emissions are based on international protocols which specify that inventories include those emissions generated within city boundaries. These numbers do not account for the full lifecycle emissions of goods and services consumed within the city.