[Federal Register Volume 77, Number 38 (Monday, February 27, 2012)]
[Page 11533]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2012-4477]

[[Page 11533]]




Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2010; 
Notice of Availability and Request for Comments

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice of document availability and request for comments.


SUMMARY: The Draft Inventory of U.S. Greenhouse Gas Emissions and 
Sinks: 1990-2010 is available for public review. Annual U.S. emissions 
for the period of time from 1990 through 2010 are summarized and 
presented by source category and sector. The inventory contains 
estimates of carbon dioxide (CO2), methane (CH4), 
nitrous oxide (N2O), hydrofluorocarbons (HFC), 
perfluorocarbons (PFC), and sulfur hexafluoride (SF6) 
emissions. The inventory also includes estimates of carbon fluxes in 
U.S. agricultural and forest lands. The technical approach used in this 
report to estimate emissions and sinks for greenhouse gases is 
consistent with the methodologies recommended by the Intergovernmental 
Panel on Climate Change (IPCC), and reported in a format consistent 
with the United Nations Framework Convention on Climate Change (UNFCCC) 
reporting guidelines. The Inventory of U.S. Greenhouse Gas Emissions 
and Sinks: 1990-2010 is the latest in a series of annual U.S. 
submissions to the Secretariat of the UNFCCC.

DATES: To ensure your comments are considered for the final version of 
the document, please submit your comments on or before March 28, 2012. 
However, comments received after that date will still be welcomed and 
be considered for the next edition of this report.

ADDRESSES: Comments should be submitted to Mr. Leif Hockstad at: 
Environmental Protection Agency, Climate Change Division (6207J), 1200 
Pennsylvania Ave. NW., Washington, DC 20460, Fax: (202) 343-2359. You 
are welcome and encouraged to send an email with your comments to 
[email protected].

FOR FURTHER INFORMATION CONTACT: Mr. Leif Hockstad, Environmental 
Protection Agency, Office of Air and Radiation, Office of Atmospheric 
Programs, Climate Change Division, (202) 343-9432, 
[email protected].

SUPPLEMENTARY INFORMATION: The draft report can be obtained by visiting 
the U.S. EPA's Climate Change Site at: http://www.epa.gov/climatechange/emissions/usinventoryreport.html.

    Dated: February 16, 2012.
Gina McCarthy,
Assistant Administrator, Office of Air and Radiation.
[FR Doc. 2012-4477 Filed 2-24-12; 8:45 am]