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Greenhouse Gas Reporting Program (GHGRP)

GHGRP 2012: Minerals

The minerals sector consists of cement production, glass manufacturing, lime production, soda ash production, and any other mineral production facility operating under NAICS codes beginning with 327 (Non-metallic Mineral Product Manufacturing). Facilities under this sector transform mined or quarried non-metallic minerals — such as sand, gravel, stone, clay, and refractory materials — into products for intermediate or final consumption. Glass, cement, soda ash and lime facilities report both process emissions from the calcination of carbonate-based raw materials and GHG emissions from stationary combustion sources. All other mineral production facilities report only GHG emissions from stationary combustion sources. A small number of facilities in this sector collect CO2 either for use in their other production processes (e.g., sugar refining), to transfer to other users, or to sequester or otherwise inject underground. This sector includes the CO2 emissions reported for those processes.

Minerals Sector — Greenhouse Gas Emissions Reported to the GHGRP
(all emissions values presented in million metric tons CO2e)
  2010 2011 2012
Number of facilities: 359 367 369
Total emissions (CO2e): 101 103 107
Emissions by greenhouse gas (CO2e)
• Carbon dioxide (CO2): 101 103 107
• Methane (CH4): 0.1 0.1 0.1
• Nitrous oxide (N2O): 0.3 0.2 0.2

CO2 emissions from the combustion of biomass are NOT included in emissions totals provided above.

Number of reporters and 2012 emissions (CO2e) per metals industry subsector
Industry Sector 2012 Number of Reporters 2012 Emissions (million metric tons CO2e)
Cement Production 96 60
Lime Production 74 30
Glass Production 107 8.2
Soda Ash Manufacturing 4 5.2
Other Minerals 89 3.8

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