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Frequently Asked Questions

What are the energy-related carbon dioxide emissions from fossil fuels for the United States and the world?

Energy-related carbon dioxide (CO2) emissions by type of fossil fuel in million metric tons and share of total in 2015:

 United StatesWorld
 AmountShare of totalAmountShare of total
Total from fossil fuels5,269 32,722 
Coal1,48528%13,27841%
Natural gas11,48828%7,08622%
Petroleum2,29544%12,35838%

1Includes combustion and flaring of natural gas.

Learn more:
International Energy Statistics, CO2 emissions for the United States
International Energy Statistics, CO2 emissions for the world

Last updated: December 21, 2017


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