An official website of the United States government.

We've made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Greenhouse Gas Reporting Program (GHGRP)

GHGRP 2014: Metals

girder icon The metals sector consists of metal production facilities that smelt, refine, and/or cast ferrous and nonferrous metals, including primary aluminum, ferroalloy, iron and steel, lead, magnesium, and zinc, from ore, pig, or scrap using electrometallurgical and other methods. The sector also includes foundries and any other metal production facility operating under NAICS codes beginning with 331 (Primary Metal Manufacturing). Primary aluminum, ferroalloy, iron and steel, lead, magnesium, and zinc production facilities report GHG emissions from metal smelting, refining, and/or casting activities, as well as from stationary fuel combustion sources. All other metal production facilities report only the GHG emissions from stationary fuel combustion sources.

Metals Sector — Greenhouse Gas Emissions Reported to the GHGRP
(all emissions values presented in million metric tons CO2e)
  2011 2012 2013 2014
Number of facilities: 299 300 300 300
Total emissions (CO2e): 112.8 106.9 106.8 103.4
Emissions by greenhouse gas (CO2e)
• Carbon dioxide (CO2): 107.8 102.6 102.7 100.0
• Methane (CH4): ** ** ** **
• Nitrous oxide (N2O): ** ** ** **
• Hydrofluorocarbons (HFCs): ** ** 0.1 0.1
• Perfluorocarbons (PFCs): 3.5 2.9 3.0 2.5
• Sulfur hexafluoride (SF6): 1.5 1.3 1.0 0.7
  • Totals may not equal sum of individual GHGs due to independent rounding.
  • ** Total reported emissions are less than 0.05 million metric tons CO2e.

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

Number of reporters and 2014 emissions (CO2e) per metal industry subsector
Industry Sector 2014 Number of Reporters 2014 Emissions (million metric tons CO2e per year)
Aluminum Production 10 5.9
Ferroalloy Production 10 2.1
Iron and Steel Production 127 82.9
Lead Production 12 1.1
Magnesium Production 10 1.2
Zinc Production 6 0.7
Other Metals 125 9.6

Other EPA Resources

Top of Page