Carbon dioxide (CO₂) is the primary greenhouse gas (GHG) emitted from human activities in the United States, accounting for roughly 80 percent of the country's total gross GHG emissions in 2022. The main sources of CO₂ emissions are fossil fuel combustion from transportation and power generation.
Methane represented 11 percent of U.S. GHG emissions that year. Although CO₂ is the most abundant GHG, methane is more effective at trapping heat in the atmosphere. The main sources of methane emissions in the U.S. are enteric fermentation, natural gas systems, and landfills.
Distribution of total gross greenhouse gas emissions in the United States in 2022, by type of gas
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Environmental Protection Agency. (April 11, 2024). Distribution of total gross greenhouse gas emissions in the United States in 2022, by type of gas [Graph]. In Statista. Retrieved December 30, 2024, from https://www.statista.com/statistics/521029/share-of-us-greenhouse-gas-emissions-by-gas-type/
Environmental Protection Agency. "Distribution of total gross greenhouse gas emissions in the United States in 2022, by type of gas." Chart. April 11, 2024. Statista. Accessed December 30, 2024. https://www.statista.com/statistics/521029/share-of-us-greenhouse-gas-emissions-by-gas-type/
Environmental Protection Agency. (2024). Distribution of total gross greenhouse gas emissions in the United States in 2022, by type of gas. Statista. Statista Inc.. Accessed: December 30, 2024. https://www.statista.com/statistics/521029/share-of-us-greenhouse-gas-emissions-by-gas-type/
Environmental Protection Agency. "Distribution of Total Gross Greenhouse Gas Emissions in The United States in 2022, by Type of Gas." Statista, Statista Inc., 11 Apr 2024, https://www.statista.com/statistics/521029/share-of-us-greenhouse-gas-emissions-by-gas-type/
Environmental Protection Agency, Distribution of total gross greenhouse gas emissions in the United States in 2022, by type of gas Statista, https://www.statista.com/statistics/521029/share-of-us-greenhouse-gas-emissions-by-gas-type/ (last visited December 30, 2024)
Distribution of total gross greenhouse gas emissions in the United States in 2022, by type of gas [Graph], Environmental Protection Agency, April 11, 2024. [Online]. Available: https://www.statista.com/statistics/521029/share-of-us-greenhouse-gas-emissions-by-gas-type/
