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Frequently Asked Questions

What are U.S. energy-related carbon dioxide emissions by source and sector?

Total U.S. energy-related carbon dioxide (CO2) emissions were 5,269 million metric tons in 2018.

Energy-related carbon dioxide (CO2) emissions by source and sector for the United States, 2018 (million metric tons)
 ResidentialCommercialIndustrialTransportationElectric powerSource total
Coal0211001,1501,259
Natural gas273191534
465811,625
Petroleum6560
3621,866212,374
Other1    1111
Electricity26796384424  
Sector total1,017
8911,4451,9161,7635,269

1 Emissions from combustion of waste materials derived from petroleum and from some types of geothermal power plants.
2 Electricity-related CO2 emissions are based on electric power sector electricity sales to the other sectors and the emissions associated with the generation of that electricity. The electric power total of 1,763 million metric tons is not included in the source total for all sectors (5,269 million metric tons) to avoid double counting.
Note: Sum of data in columns and rows may not equal the totals because of independent rounding.
Source: Monthly Energy Review, October 2019

Learn more:
Monthly Energy Review, Tables 12.1 through 12.6 contain the most recent estimates of monthly and annual U.S. energy-related CO2 emissions by sector and energy source.
Energy Explained: Where Greenhouse Gases Come From

Last updated: October 25, 2019


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