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Potential conflicts with or potential to obstruct implementation of the applicable air quality plan where it may cause or contribute to emission of identified air pollutants in excess of levels stated in the plan or where it may fail to implement a remedial or mitigation measure required under the plan will be analyzed. Cumulative net increase of criteria pollutants for which the project region is in non -attainment will be analyzed to determine if the project emissions, considered cumulatively, will increase the level of any criteria pollutant above the existing ambient level. Global Climate Change PBS&J will prepare a new Global Climate Change section based on revisions to the project as well as regulatory changes that have occurred since the Renaissance Specific Plan EIR was completed. PBS&J will update relevant project information including direct and indirect greenhouse gas emission sources generated by the project. Direct emission sources include exhaust emissions from construction equipment during construction of the project, and motor vehicles during operation of the project; natural gas combustion for household heating/cooking; and exhaust emissions from landscape equipment. Indirect emission sources include the use of electricity, potable water use, and the generation of wastewater and solid waste. PBS&J will review the latest global climate change planning documents from state agencies for goals and policies that may relate to project (i.e. building efficiency requirements etc.). PBS&J will update the description of global warming concept and the science that supports it. A description of each of the greenhouse gasses (GHGs) and the project's participation (or lack of) in the formation of these gases will be included in the analysis. The analysis will also update descriptions of California law AB-1493 (Pavley 2002), the court challenges to AB-1493, and AB-32 (Nunez 2006) limiting greenhouse gas emissions from autos and stationary sources, and the science behind these laws. Currently, CEQA threshold for GHGs have not been established by any state or local agency. However, the absence of an established threshold does not relieve the Lead Agency under CEQA from analysis of impacts or establishing a threshold to determine significance of a project's participation in environmental impacts. PBS&J will assist in determining significance by analyzing the Project based upon the two questions in Appendix G of the Revised CEQA Guidelines. Those questions are: 1) Will the Project generated GHG emissions in amounts that significantly impact the environment? 2) Does the Project comply with a local, regional or statewide plan for the reduction of GHG emissions? PBS&J will update the consistency analysis of the Project with reduction measures recommended by the California Climate Action Team and reduction rates found in AB-32 and Executive Order S-3-05. This analysis will use the suggested guidance found in the Association of Environmental Professionals White Paper on Evaluating Climate Change Impacts and Greenhouse Gas Emissions in CEQA Documents and the California Air Pollution Control Officers Association White Paper on Evaluating Greenhouse Gas Emissions in CEQA Documents.