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If a plan or project's emissions do not exceed the applicable threshold, then its GHG emissions impacts (both project- and cumulative-level) would be concluded to not result in a cumulatively considerable impact related to GHG emissions and climate change and would therefore be less than significant. If a plan or project's emissions exceed the applicable threshold, then mitigation measures must be identified and respective GHG emissions reduction calculations included within the respective CEQA review document in order to reduce plan or project GHG emissions to be at or below the applicable threshold level. Modeling Quantification While developing the GHG thresholds, the consultant assisting the City with development of the thresholds uncovered a unit conversion error for calculating GHG impacts associated with carbon sequestration that had been used in the CAP 2.0 GHG impact model. Specifically, the conversion from pounds (Ibs) to metric tons (MT) of CO2 was incorrectly noted as 0.139 rather than 0.000453592. This issue resulted in an overestimation of the GHG sequestration potential of the CAP Primary Action P13, the Urban Forest Master Plan. Since this error alters the projection of GHG reductions over time and affects the overall quantification of reductions reflected in the plan, it is necessary to amend/correct the CAP 2.0 accordingly. To offset the overestimation of reductions found with respect to the Urban Forest Master Plan, staff recommends strengthening three additional actions, to provide greater levels of associated GHG emissions reductions. These changes will allow the CAP 2.0 to continue to meet the GHG emissions targets and be consistent with the Plan's original goals. These changes were reviewed and recommended for approval by the Committee on Energy and Environment on September 7, 2022. The suggested changes include: • Action P2: Existing Building Electrification. The CAP 2.0 included a very conservative goal of a five percent switch from natural gas to electric energy use by 2030. The revised modeling would use a somewhat more aggressive, but nonetheless realistic assumption that there will be a 15 percent switch from natural gas use to electric by 2030, and that 30 percent of space and water heating equipment will be replaced with electric equipment by 2030. These assumptions are similar (and still slightly more conservative) than those used in neighboring cities' CAPs (e.g., Dublin), and reflective of evolving state and federal programs and policies, such as the California Building Code, that strongly support electrification. • Action P5: ZEV Infrastructure Plan. The CAP 2.0 modeling assumes that passenger vehicle VMT will shift to 20 percent from Electric Vehicles by 2030; and 17 percent of commercial VMT from EVs by 2030. This is proposed to be adjusted to 30 percent and 25 percent respectively by 2030, reflecting a somewhat more aggressive assumption. To support this shift, the language of Action P5 is proposed to be strengthened to add two additional implementation Page 5 of 8