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City of Pleasanton <br />GHG Inventory, Forecast, and Targets Methodology and Calculations <br /> <br />4 <br />Table 1 Global Warming Potentials of Greenhouse Gases <br />Greenhouse Gas Molecular Formula Global Warming Potential (CO2e) <br />Carbon Dioxide CO2 1 <br />Methane CH4 28 <br />Nitrous Oxide N2O 265 <br />MT CO2e: metric tons of carbon dioxide equivalent <br />Included Emissions <br />The 2017 community inventory for the City of Pleasanton includes estimated emissions for the <br />following sectors: <br />▪ Energy (electricity, natural gas, direct access electricity) <br />▪ On-road Transportation (passenger, commercial) <br />▪ Off-road Transportation <br />▪ Waste (solid waste, alternative daily cover) <br />▪ Water <br />▪ Wastewater (direct, indirect) <br />Excluded Emissions <br />The following emissions sectors were excluded from Pleasanton’s CAP 1.0 inventory for 2005 and are <br />also excluded from the updated 2005, 2010, 2015, and 2017 inventories. Additional updates were also <br />made to the 2005, 2010, and 2015 inventories in order to maintain consistency between all inventory <br />years. These changes are summarized in Sections 2.2 and 2.3. <br />Consumption-based Emissions <br />GHG emissions from consumption of goods within the city are excluded from the inventory and <br />forecast of Pleasanton’s emissions. This is due to no widely accepted standard methodology currently <br />existing for reporting consumption-based inventories from CARB or the ICLEI U.S. Community Protocol. <br />Natural and Working Lands Emissions <br />GHG emissions from carbon sinks and sources in natural and working lands are not included in this <br />inventory and forecast due to the lack of granular data and standardized methodology. CARB has <br />included a State-level inventory of natural and working lands in the 2017 Scoping Plan Update16 GHG <br />inventory; however, at the time of this City of Pleasanton community-wide inventory, sufficient data <br />and tools were not available to conduct a jurisdiction-specific working lands inventory. The Nature <br />Conservancy and California Department of Conservation17 are exploring options for a tool that may be <br />able to perform these inventories at a more specific geographic level. <br /> <br />16 California Air Resources Board. 2017. California Climate Change Scoping Plan Update. <br />17 California Department of Conservation. TerraCount Scenario Planning Tool. Available: <https://maps.conservation.ca.gov/terracount/>. <br />Accessed: April 15, 2020