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Responses to Environmental Checklist For CEQA Compliance extended period of time. There may be localized instances when the characteristic diesel exhaust odor is noticeable from passing trucks or nearby heavy equipment, but such transitory exposure is a brief nuisance and would not threaten air quality standards. Reactive Organic Gases (ROG) Construction activities also generate evaporative emissions of Reactive Organic Gases (ROGs} from paints, asphalt and other coatings. Materials such as asphalt, paints and solvents are not anticipated to be used to any measurable degree as part of the proposed project; thus, VOC emissions would be small and would net exceed the SCAQMD threshold of 75 pounds per day. Global Climate Change Gases that trap heat in the atmosphere are often called greenhouse gases, analogous to a greenhouse. Greenhouse gases are emitted by natural processes and human activities. The accumulation of greenhouse gases in the atmosphere regulates the earth's temperature, and without natural greenhouse gases, the Earth's surface would be about 61°F cooler. Emissions from human activities such as electricity production and vehicles have elevated the concentration of these gases in the atmosphere. Although these is some disagreemer~fi-among experts, data has shown that this anthropogenic increase in atmospheric greenhouse gas concentration is a likely contributor to increases in the Earth's temperature, called Global Climate Change or Global Warming. Thresholds of significance have not been established under CEQA to evaluate the impact a project may have on Global Climate Change. Generally, even a very large individual project cannot generate enough greenhouse gas emissions to measurably influence global climate change. A project participates in this potential impact by its incremental contribution combined with the cumulative increase of all other sources of greenhouse gases, natural and human-made, which when considered together, form global climate change effects. The proposed project would involve the demolition of an existing sewer lift station and the construction of a new lift station. During construction of the proposed project, there would be some emissions known to be associated with greenhouse gases. However, during long-term operation of the proposed project, any increase in greenhouse gas emissions associated with the proposed lift station would be off-set because emissions associated with the existing lift s#ation would no longer occur. Thus, upon project completion, there would be no net increase in greenhouse gas emissions. C. Result in a cumulatively considerable net increase of any criteria pollutant for which the project region is non-attainment under an applicable federal or state ambient air quality standard (including releasing emission which exceeds quan#itative thresholds for ozone precursors)? Finding: Less than Significant Impact. Page 37 of 64 75E-41