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8.D. - Page 80 Invento Results Emissions Total In 2010, Redw�od Cit�s greenhouse gas emissions from governinent operations totaled 6,441.56 inetric tons of COze. This rnn�nber represents a roll-up of ei�ni�sions. While the roll up is a valuable figure, inforn�ation on the breakdown of emissions from local governinent operations by scopes,sources,and sectors allow�the comparative analy�is and insight needed for effective decision i�ldng on target setting,developing GHG reduction measLnes,or monitorin� The LGO Protocol and ICLEI identify reporting by scopes, sotnces, and sectors as the strongly preferred form of reporting a greenhouse gas inventory. For more details on the breakdown of Redw�od Cit�s emissions by scopes, sources, and sectors,refer to subsequent sections within Inventory Results in this report. Buildings and Other Facilities Of the seven sectors in the mLmicipal inventory, BLrildings and Facilities represents the largest GHGemitting sector at 1,641.15 metric tons (26 percent) of COze (see Fig�ne 1 and Table 1 in the Execukive S�ru�nary). Facility operations contribute to greenhouse gas ei�ni�sions in ttiw rnaj or way�. First, facilities constnne electricity and fuels such as natural gas. This consLn�tion is associated with the rnaj ority of greenhouse gas emissions from facilities - approxirriately 99 percent in the case of Redw�od City. Table 9 shows that electricity consLnnption was the leading contnbutor of GHGs, accoLmting for 965.77 metric tons (59 percent) of COze. Nattnal gas consui�tion contnbuted another 654.13 inetric tons(40 percent)of COze,and diesel consLnnption contnbuted 15.74 inetric tons(approximately 1 percent)of COze. In addition to erni�sions from electricity and fuel consLn�tion, fire suppression, air conditioning, and refrigeration eqtriprr�ent in bLrildings can emit hydrofluorocarbons (I�Cs) and other greenhouse gases wizen these sy�tems leak Refrig+erants and fire suppressants are very potent greenhouse gases, and have Global Wanning Potential(GWP) of up to many thousand tiines tl�at of COz. For example,HFG134a,a very common refrigerant,has a GWP of 1300,or 1300 times that of COz. Therefore,even small amoLmts of leaked refrigerants can have a significant effect on greenhouse gas emissions. In 2010, refrigerant leakage in Redw�od City facilities accoLmted for 5.84 inetric tons of COze (less than 1 percent). The City of Redwvod City operates 20 major facilities, including City Hall, fire stations, police facilities, libraries, commLmity centers, pools, and parldng garages, along with 23 parks and a number of smaller, minor facilities. For the purposes of this inventory,facilities ww�rre grouped into ten categories with most accoLmting for more tl�an one bLrilding (see Fig�ne 3 and Table 8).In 2010,the Police Facility and City Hall w�re the tw�larg+est single-building contnbutors to emissions,accoLmting for 479.40 metric tons(29 percent)of COze. I I ' � ii i 1 i i i i :