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Friday, August 29, 2014

EPA Publishes Second-Year Data from Greenhouse Gas Reporting Program

The U.S. Environmental Protection Agency (EPA) posted its second-year reporting of greenhouse gas (GHG) emissions on its website yesterday, providing data by sector, by greenhouse gas, and by geographic region such as county or state.

“With this second data release, communities, businesses, and others can track and compare facilities’ greenhouse gas emissions and identify opportunities to cut pollution, minimize wasted energy, and save money,” said Gina McCarthy, assistant administrator for the EPA’s Office of Air and Radiation, in a statement.

EPA logoThe 2011 data, collected through the congressionally mandated Greenhouse Gas (GHG) Reporting Program, includes information from facilities in 41 source categories that emit large quantities of GHGs. The 2011 data also contains new data collected from 12 additional source categories, including petroleum and natural gas systems and coal mines.

For facilities that are direct emitters of GHGs, the data show that in 2011:

- Power plants remain the largest stationary source of GHG emissions, with 2,221 million metric tons carbon dioxide equivalent (mmtCO2e), roughly one-third of total U.S. emissions. Emissions in 2011 from this source were approximately 4.6 percent below 2010 emissions, reflecting an ongoing increase in power generation from natural gas and renewable sources.

- Petroleum and natural gas systems were the second largest sector, with emissions of 225 mmtCO2e in 2011, the first year of reporting for this group.

- Refineries were the third-largest emitting source, with 182 mmtCO2e, a 0.5 percent increase over 2010.

The EPA now has two years of GHG data for 29 source categories. Some industrial sectors, such as metals production and chemicals production, reported overall increases in emissions, while others, such as power plants, reported decreases. Overall emissions reported from these 29 sources were 3 percent lower in 2011 than in 2010. In the future the data collected through the program will provide the public with the opportunity to compare emissions and developing trends for all 41 industry types — by facility and sector.

The data is accessible through the Facility Level Information on Green House gases Tool (FLIGHT), a web-based data publication tool. The EPA has also expanded accessibility of this data through its EnviroFacts online database that allows a user to search for information by zip code.

The data collection program is required by Congress in the FY2008 Consolidated Appropriations Act, which requires facilities to report data from large emission sources across a range of industry sectors, as well as suppliers of certain greenhouse gases, and products that would emit GHGs if released or combusted. EPA’s GHG Reporting Program includes information from more than 8,000 sources and represents 85 to 90 percent of total U.S. GHG emissions. This data only includes large facilities and does not include small sources, agriculture, or land use.

Access to the GHG Reporting Program data and data publication tool is given at Access to the EnviroFacts online database is given at

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