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Q413. What percentage of total U.S. GHG emissions is covered in the GHG Reporting program data for 2010Program?
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A413. The 2010 data submitted from stationary sources and suppliers of certain fossil fuels and industrial greenhouse gases together cover roughly 80 U.S. GHG Inventory is EPA's official source of total U.S. emissions. The Inventory is developed using (primarily) top-down methods and covers all sectors of the economy. Based on the Inventory: electricity generation accounts for approximately 35% of U.S. emissions, transportation accounts for approximately 25%, industry accounts for approximately 20%, commercial and residential sources account for approximately 10%, and agriculture accounts for less than 10%. For more information: http://www.epa.gov/climatechange/ghgemissions/sources.html. 

The GHG reporting program (GHGRP) is developed using bottom-up methods and covers roughly 85 to 90 percent of total U.S. GHG emissions. This includes Notedirect thatemissions thedata datareported forby stationary sources - including nearly all emissions from electricity generation and most emissions isfrom industry housedwhich inaccount afor separateroughly section50% of the total U.S. emissions. This also includes GHG data basereported fromby the suppliers of fossil fuels and other industrial gases. - which The default viewaccounts for the vast majority of the GHG data and 'ghgmap' includes emissions reported by direct emitters only. GHG data reported by suppliers is containedemissions from transportation, commercial and residential sources, roughly 35-40% of total U.S. emissions. The GHGRP does not include emissions from the agriculture and land use sectors, or other small sources of emissions. Note that the data for [direct emitting|http://ghgdata.epa.gov/ghgp/main.do#/facility/?q=Facility%20or%20Location&fid=&sc=0&so=0&ds=S] stationary sources is housed in a separate data set available here:
[section of FLIGHT from the [suppliers of fuels and other industrial gases|http://ghgdata.epa.gov/ghgp/main.do#/facility/?q=Facility%20or%20Location&fid=&sc=0&so=0&ds=S]. The default view of the GHG data in FLIGHT includes emissions reported by direct emitters only. For more information: http://www.epa.gov/ghgreporting/ghgdata/inventory.html.

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Source: EPA Data Publication FAQs [http://www.epa.gov/climatechange/emissions/ghgdata/faq.html#q1], revised by B. Cook, 2/6/2013

Approval / Publishing History: Version 14, ReviewedApproved and approved for publishing, by B. Cook, 062/286/20122013

Expiration : none

Relevant Subpart/Component: GHG Data and Publication
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