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City of Pleasanton CEQA GHG Emissions Thresholds and Guidance 2 Climate Action Plan Summary The following sections provide an overview of the Pleasanton CAP 2.0, including the 2005 and 2017 communitywide GHG emissions inventories,and the communitywide GHG emissions forecast for years 2030 and 2045, and the proposed GHG emission reduction strategy. 2. 1 Communitywide GHG Emissions Inventories The City has completed communitywide GHG emissions inventories for years 2005 and 2017, which are summarized in Table 2.Table 2 also provides estimated 1990 emissions levels for informational purposes. As shown therein, communitywide GHG emissions declined by approximately 28 percent between 2005 and 2017, exceeding the City's target of reducing emissions by approximately 15 percent below baseline 2005 levels by 2020 (equivalent to the State's target of reducing emissions to 1990 levels under Assembly Bill 32).7 The most notable changes occurred in the energy sector driven primarily by increased decarbonization of the PG&E electricity fuel mix.' Table 2 Pleasanton 1990, 2005, and 2017 Communitywide GHG Emissions Levels 19901 2005 Sector (MT of • • - • - 2005 to 2017 On-Road Transportation N/A 386,963 329,615 -15% Off-road Transportation N/A 117,067 48,634 -58% Non-residential Energy N/A 153,958 97,791 -36% Residential Energy N/A 112,957 80,218 -30% Water&Wastewater N/A 6,689 2,938 -56% Solid Waste N/A 35,497 29,358 -17% Total 691,161 813,131 588,553 -28% MT=metric tons;C0e=carbon dioxide equivalents Note:Numbers are rounded to the nearest ten. 1 1990 GHG emissions were estimated by back-casting Pleasanton's total 2017 GHG emissions based on the change in the State's GHG emissions between 2017 and 1990.1990 GHG emissions were not estimated at the individual sector level. Source:Pleasanton,City of.2022.Pleasanton 2017 Community GHG Inventory. 2.2 GHG Emission Reduction Strategy To achieve the City's long-term aspirational goal of carbon neutrality by 2045,the Pleasanton CAP 2.0 includes a series of strategies and actions that are intended to reduce communitywide GHG emissions by approximately 51 percent below 1990 levels by 2030 (equivalent to a 70 percent reduction in per-capita 1990 emissions levels and totaling 4.11 metric tons of carbon dioxide equivalents [MT of CO2e]9 per person in 2030).This provides substantial progress toward meeting 7 California Air Resources Board.2008.Climate Change Scoping Plan. 8 Pleasanton,City of.2022.Pleasanton 2017 Community Greenhouse Gas Emissions Inventory. 9 Different types of GHGs have varying global warming potentials(GWPs).The GWP of a GHG is the potential of a gas or aerosol to trap heat in the atmosphere over a specified timescale(generally,100 years).Because GHGs absorb different amounts of heat,a common reference gas,CO,,is used to relate the amount of heat absorbed to the amount of the gas emissions,referred to as carbon dioxide 6