2020-06-25_REVISION - C1981035 (3)

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primarily due to increased consumption of low sulfur coal from surface mines in the western states and the installation of control equipment utilized by generators. Table 2.2-8 U.S. Sulfur Dioxide (Indirect GHG) Emissions Gas/Source GHG 2005 GHG 2012 GHG 2016 _F (MMT) (MMT) (MMT) Combustion (fossil fuel stationary and mobile, 11.75 5.13 1.92 waste) Industrial Processes 0.83 0.60 0.50 Oil&Gas Activities 0.62 0.14 0.44 Total S02 Emissions 13.20 5.88 2.46 NAAQS do not exist for GHGs. In its Endangerment and Cause or Contribute Findings for Greenhouse Gases under Section 202(a) of the CAA (FR EPA-HQ-OAR-2009-0171), the EPA determined that GHGs are air pollutants subject to regulation under the CAA.GHGs'status as pollutants are due to the added long-term impacts they have on the climate because of their increased concentrations in the earth's atmosphere. Ongoing scientific research has identified that anthropogenic GHG emissions impact the global climate. Industrialization and the burning of fossil fuels have contributed to increased concentrations of GHGs in the atmosphere. GHGs are produced from both the direct process of coal mining as well as from the combustion of the mined coal. The amount of GHG emissions associated with both processes varies greatly based on mining techniques and combustion methodologies used. The EPA has promulgated rules to regulate GHG emissions and the industries responsible under the Mandatory Reporting Rule (74 FR 56260, 40 CFR 98) and the Tailoring Rule (70 FR 31514, 40 CFR 51, 52, 70, 71). Under the EPA's GHG Mandatory Reporting Rule, coal mines subject to the rule are required to report emissions in accordance with the requirements of Subpart FF. Subpart FF is applicable only to underground coal mines and is not applicable to surface coal mines. Under the provisions of the Tailoring Rule (and a subsequent Supreme Court decision 2), a facility would be subject to PSD permitting if it has the potential to emit GHGs in excess of 100,000 tpy of CO2e and the facility exceeded the PSD major source threshold for a criteria pollutant. For existing facilities this review would take place during any subsequent modifications to the facility. Based on emissions estimates for the King II Mine, no GHG reporting or permitting would apply to the facility. Global warming of approximately 2°C (above the pre-industrial baseline) is very likely to lead to more frequent extreme heat events and daily precipitation extremes over most areas of North America, more frequent low snow years, and shifts towards earlier snowmelt runoff over much of the western U.S. and Canada (IPCC 2013).Together with climate hazards such as higher sea levels and associated storm surges, more intense droughts, and increased precipitation variability, these changes are projected to lead to increased stresses to water, agriculture, economic activities, and urban and rural settlements. Z Utility Air Regulatory Group v. EPA, U.S., 134 S. Ct. 2427(June 23,2014) Dunn Ranch Area LBA and Mining Plan Modification 15 Technical Resources Report