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Climate Change

National Greenhouse Gas Emissions Data

(February 2015)

Per an announcement in the Federal Register (FR) [FRL 9923-52-OAR], the draft 1990-2013 Greenhouse Gas Emissions Inventory is now available for public comment. To ensure your comments are considered for the final version of the document, please submit your comments by March 26, 2015. Comments can be sent to Leif Hockstad at hockstad.leif@epa.gov or Melissa Weitz at weitz.melissa@epa.gov.

How to submit a comment.

The Inventory of U.S. Greenhouse Gas Emissions and Sinks tracks the national trend in greenhouse gas emissions and removals back to 1990. The report contains total U.S. emissions by source, economic sector, and greenhouse gas. EPA uses national energy data, data on national agricultural activities, and other national statistics to provide a comprehensive accounting of total GHG emissions for all man-made sources in the United States. EPA also collects greenhouse gas emissions data from individual facilities and suppliers of certain fossil fuels and industrial gases through the Greenhouse Gas Reporting Program.

Read or download the entire Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2013 (PDF, 559 pp., 11.1 MB, About PDF). For faster access, individual report sections are posted below, for example the Executive Summary (PDF, 27 pp., 1.01 MB, About PDF).

Individual sections of the draft report are also available for download:

Upfront (PDF) (5 pp., 348 KB) - Includes title page, acknowledgments and preface.

Table of Contents (PDF) (17 pp., 537 KB) - Contains the main inventory document's table of contents as well as the list of tables, figures, and boxes.

Executive Summary (PDF) (27 pp., 1.10 MB) - Provides a broad overview of all U.S. greenhouse gas emission sources and sinks, introduces key concepts and discusses the primary drivers for changes in emissions. All material in the Executive Summary is drawn from the following chapters.

Introduction (PDF) (24 pp., 849 KB) - Includes background information on greenhouse gas emission inventories, an introduction to climate change, a discussion of methodological issues and plans for QA/QC and an uncertainty analysis.

Trends in Greenhouse Gas Emissions (PDF) (22 pp., 1.24 MB) - Provides an overview of emission trends and discusses the primary drivers for changes in emissions.

Energy (PDF) (86 pp., 2.05MB) - Discusses and quantifies energy related emissions of all greenhouse gases resulting from stationary and mobile source activities including fuel combustion and fugitive fuel emissions.

Industrial Processes and Product Use (PDF) (112 pp., 2.01 MB) - Addresses emissions from industrial processes not directly related to energy activities.

Agriculture (PDF) (44 pp., 2.31 MB) - Addresses anthropogenic emissions from agricultural activities (not including fuel combustion and sewage emissions, which are addressed in the Energy and Waste chapters).

Land Use, Land-Use Change, and Forestry (PDF) (89 pp., 3.42 MB) - Addresses emissions and removals from forest and land-use change activities, primarily carbon dioxide.

Waste (PDF) (34 pp., 1.04 MB) - Addresses emissions from waste management activities.

Other (PDF) (1 pp., 203 KB) - Addresses emissions from the "Other" IPCC sector.

Recalculations and Improvements (PDF) (9 pp., 580 KB) - Includes an overview of changes in this year's report, including historical data, methodology and other changes relative to the 1990-2011 report.

References (PDF) (72 pp., 967 KB) - Contains the list of references used in the main inventory document.

All Annexes (PDF) (458 pp., 10.0 MB) - Supplementary information, data tables, detailed emission calculations and methodological discussions.

Annex Introduction and TOC (PDF) (1 pp., 214 KB) - Contains the table of contents for the Annex.

Annex 1 (PDF) (27 pp., 1.00 MB) - Key Category Analysis.

Annex 2 (PDF) (96 pp., 2.04 MB) - Methodology and Data for Estimating CO2 Emissions from Fossil Fuel Combustion.

Annex 3 (PDF) (262 pp., 6.56 MB) - Methodological Descriptions for Additional Source or Sink Categories.

Annex 4 (PDF) (10 pp., 393 KB) - IPCC Reference Approach for Estimating CO2 Emissions from Fossil Fuel Combustion.

Annex 5 (PDF) (2 pp., 225 KB) - Assessment of the Sources and Sinks of Greenhouse Gas Emissions Not Included.

Annex 6 (PDF) (26 pp., 738 KB) - Additional Information.

Annex 7 (PDF) (29 pp., 691 KB) - Uncertainty.

Annex 8 (PDF) (4 pp., 352 KB) - QA/QC Procedures.

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