Frequently Asked Questions

What are the sources of energy-related carbon dioxide emissions by type of fuel for the United States and the world?

The energy-related carbon dioxide emissions by type of fossil fuel and the amount in million metric tons, and by percent share in 2011:

  United States World
  Amount Share of Total Amount Share of Total
Total from Fossil Fuels 5,491   32,579  
Coal 1,874 34% 14,416 44%
Natural Gas1 1,318 24% 6,755 21%
Petroleum 2,299 42% 11,408 35%

1Includes combustion and flaring of natural gas.

Learn more:

Historical and most recent available international statistics on energy-related carbon dioxide emissions.

Last updated: March 21, 2013


Other FAQs about Environment