The James H. Miller Jr. Electric Generating Plant in Alamaba was the biggest climate polluter in the United States in 2022, with emissions totaling million metric tons of carbon dioxiode equivalent (MtCO₂e). While the majority of the ** highest-emitting facilities in the U.S. were power plants, there were also other industrial facilities with significant emissions that year. These included the ExxonMobil refinery in Baytown and the U.S. Steel Corp Gary Works steel mill, which produced ** and ** MtCO₂e, respectively. Together, these ** industrial facilities produced around *** MtCO₂e in 2022, accounting for roughly five percent of the U.S.’s total GHG emissions that year.
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Frontier Group. (September 24, 2024). Greenhouse gas emissions from the most polluting facilities in the United States in 2022 (in million metric tons of carbon dioxide equivalent) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 24, 2026, from /statistics/1441054/largest-ghg-emitters-united-states/
Frontier Group. "Greenhouse gas emissions from the most polluting facilities in the United States in 2022 (in million metric tons of carbon dioxide equivalent)." Chart. September 24, 2024. ÌÇÐÄÆƽâ°æ. Accessed July 24, 2026. /statistics/1441054/largest-ghg-emitters-united-states/
Frontier Group. (2024). Greenhouse gas emissions from the most polluting facilities in the United States in 2022 (in million metric tons of carbon dioxide equivalent). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 24, 2026. /statistics/1441054/largest-ghg-emitters-united-states/
Frontier Group. "Greenhouse Gas Emissions from The Most Polluting Facilities in The United States in 2022 (in Million Metric Tons of Carbon Dioxide Equivalent)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 24 Sep 2024, /statistics/1441054/largest-ghg-emitters-united-states/
Frontier Group, Greenhouse gas emissions from the most polluting facilities in the United States in 2022 (in million metric tons of carbon dioxide equivalent) ÌÇÐÄÆƽâ°æ, /statistics/1441054/largest-ghg-emitters-united-states/ (last visited July 24, 2026)
Greenhouse gas emissions from the most polluting facilities in the United States in 2022 (in million metric tons of carbon dioxide equivalent) [Graph], Frontier Group, September 24, 2024. [Online]. Available: /statistics/1441054/largest-ghg-emitters-united-states/
