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City of Santa Ana <br />Environmental Checklist <br /> Less-than- <br /> Significant <br /> Potentially Impact with Less-than- <br /> Significant Mitigation Significant No <br />V11. Greenhouse Gas Emissions Impact Incorporated Impact Impact <br />Would the project: <br />a. Generate greenhouse gas emissions, either directly or ? ® ? ? <br />indirectly, that may have a significant impact on the <br />environment? <br />b. Conflict with an applicable plan, policy, or regulation ? ? ® ? <br />adopted for the purpose of reducing the emissions of <br />greenhouse gases? <br />Discussion <br />Environmental Setting <br />State Greenhouse Gas Emissions <br />Worldwide, California is the 121h largest emitter of carbon dioxide (C02) and is responsible for <br />approximately 2% of the world's C02 emissions (CEC 2006). <br />Transportation is responsible for 41% of the state's GHG emissions, followed by the industrial sector <br />(23%), electricity generation (20%), agriculture and forestry (8%), and other sources (8%) (CEC <br />2006). Emissions of C02 and nitrous oxide (N20) are byproducts of fossil fuel combustion, among <br />other sources. Methane (CH4), a highly potent GHG, results from off-gassing associated with <br />agricultural practices and landfills, among other sources. Sinks of C02 include uptake by vegetation <br />and dissolution into the ocean. California GHG emissions in 2006 totaled approximately 479.8 <br />million metric tons (MMT) in carbon dioxide equivalents (C02e). Greenhouse gas emissions other <br />than C02 are commonly converted into carbon dioxide equivalents, which takes into account the <br />differing global warming potential (GWP) of different gases. For example, the Intergovernmental <br />Panel on Climate Change ([PCC) finds that N20 has a GWP of 310 and methane has a GWP of 21. <br />Thus, emissions of 1 tort of N20 and 1 ton of CH4are represented as the emissions of 310 tons and 21 <br />tons of C02e, respectively. This method allows for the summation of different greenhouse gas <br />emissions into a single total. <br />Climate change could impact the natural environment in California in the following ways (among <br />others): <br />Rising sea levels along the California coastline, particularly in San Francisco and the San Joaquin <br />Delta due to ocean expansion. <br />• Extreme-heat conditions, such as heat waves and very high temperatures, which could last <br />longer and become more frequent. <br />• An increase its heat-related human deaths, infectious diseases, and a higher risk of respiratory <br />problems caused by deteriorating air quality. <br />The Bat Nha Buddhist Meditation Center 3-38 lune 2873 <br />Initial Study/Mitigated Negative Declaration 1CF 00215.12 <br />31 C-91