This is historical material, "frozen in time." The web site is no longer updated and links to external web sites and some internal pages will not work.

Please click here to access the most current Inventory of U.S. Greenhouse Gas Emissions and Sinks. The estimated greenhouse gas emissions (carbon dioxide, methane, nitrous oxide, HFCs, PFCs, SF6) contained in this report, along with future updates, will be used to monitor and track the progress of the United States in meeting our commitments under the Framework Convention on Climate Change (FCCC).

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