source inventory of bay area greenhouse gas emissions november 2006 939 ellis street san francisco california 94109 base year 2002 air quality management district prepared by special projects section tirlochan s mangat manager sukarn j claire tan m dinh amir k fanai michael h nguyen stuart a schultz approved henry d hilken director planning rules & research table contents page introduction 1 ghg 2 summary 5 trends for 10 list tables and figures global warming potentials gwps b emission factors 4 c general statistics co equivalent pollutant e major categories 7 f county 8 g sources 13 i projections 14 figure 3 3a breakdown category 9