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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 5,140 million metric tons in 2017.

Energy-related carbon dioxide (CO2) emissions by source and sector for the United States, 2017 (million metric tons)
 ResidentialCommercialIndustrialTransportationElectric powerSource total
Coal0210901,2071,318
Natural gas243174509
405061,472
Petroleum6059
3421,858192,338
Other1    1212
Electricity26536394484  
Sector total9568741,4081,9021,7445,140

1 Emissions from combustion of waste materials derived from petroleum and from some types of geothermal power plants.
2 Electricity-related CO2 emissions based on electricity use for each sector and electric power emissions.
Sum of data in columns and rows may not equal the totals because of independent rounding.
Source: Monthly Energy Review, May 2018, preliminary data

Learn more:
Historical and most recent available U.S. energy-related CO2 emissions by source and sector
Energy Explained: Where Greenhouse Gases Come From

Last updated: June 6, 2018


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