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US Emissions Inventory 2004
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INVENTORY OF U.S. GREENHOUSE GAS EMISSIONS AND SINKS: 1990-2002
(April 2004)
 All files listed in the Table of Contents are available for viewing or download in Adobe Acrobat 5.0 format. Acrobat Reader is available from Adobe Systems  at no cost.
In addition to the sections below, the complete report (not including the Annexes) (21.9 MB PDF) is available in Acrobat format.
A zip file (342 kb WinZip archive) of all individual tables from this document (main chapters and annexes) are now available in .txt format for spreadsheet analysis.
TABLE OF CONTENTS
Upfront (269 kb PDF) – includes title page, acknowledgments and preface.
Table of Contents (114 kb PDF) – full table of contents, and a list of tables and figures.
Executive Summary (440 kb PDF) – 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 (269 kb PDF) – 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 (358 kb PDF) – provides an overview of emission trends, and discusses the primary drivers for changes in emissions.
Energy (1 MB PDF) – 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 (767 kb PDF) – addresses emissions from industrial processes not directly related to energy activities.
Solvent Use (102 kb PDF) – addresses emissions resulting from the use of solvents and evaporative emissions of greenhouse gases arising from other types of product use.
Agriculture (971 kb PDF) – addresses anthropogenic emissions from agricultural activities (not including fuel combustion and sewage emissions, which are addressed, respectively, in the Energy and Waste chapters).
Land-Use Change & Forestry (17.4 MB PDF) – addresses emissions and removals from forest and land-use change activities, primarily carbon dioxide.
Waste (185 kb PDF) – addresses emissions from waste management activities.
Recalculations and Improvements (106 kb PDF) – includes an overview of changes in this year's report, including historical data, methodology and other changes relative to the 1990-2001 report.
References (464 kb PDF)
Annexes (All Annexes, 1-7) (13.6 MB PDF) – Supplementary information, data tables, detailed emission calculations and methodological discussions.
Annex 1 (1.3 MB PDF) – Key Source Analysis.
Annex 2 (2.6 MB PDF) – Methodology and Data for Estimating CO2 Emissions from Fossil Fuel Combustion:
- Annex 2.1 – Methodology for Estimating Emissions of CO2 from Fossil Fuel Combustion.
- Annex 2.2 – Methodology for Estimating the Carbon Content of Fossil Fuels.
- Annex 2.3 – Methodology for Estimating the Carbon Content of Fossil Fuels.
- Annex 2.4 – Methodology for Estimating Carbon Stored in Products from Non-Energy Uses of Fossil Fuels.
Annex 3 (6.2 MB PDF) – Methodological Descriptions for Additional Source or Sink Categories:
- Annex 3.1 – Methodology for Estimating Emissions of CH4, N2O, and Ambient Air Pollutants from Stationary Combustion
- Annex 3.2 – Methodology for Estimating Emissions of CH4, N2O, and Ambient Air Pollutants from Mobile Combustion and Methodology for and Supplemental Information on Transportation-Related GHG Emissions.
- Annex 3.3 – Methodology for Estimating CH4 Emissions from Coal Mining.
- Annex 3.4 – Methodology for Estimating CH4 Emissions from Natural Gas Systems.
- Annex 3.5 – Methodology for Estimating CH4 Emissions from Petroleum Systems
- Annex 3.6 – Methodology for Estimating CO2 and N2O Emissions from Municipal Solid Waste Combustion.
- Annex 3.7 – Methodology for Estimating Emissions from International Bunker Fuels used by the U.S. Military
- Annex 3.8 – Methodology for Estimating HFC and PFC Emissions from Substitution of Ozone Depleting Substances.
- Annex 3.9 – Methodology for Estimating CH4 Emissions from Enteric Fermentation.
- Annex 3.10 – Methodology for Estimating CH4 and N2O Emissions from Manure Management.
- Annex 3.11 – Methodology for Estimating N2O Emissions from Agricultural Soil Management.
- Annex 3.12 – Methodology for Estimating Net Changes in Forest Carbon Stocks .
- Annex 3.13 – Methodology for Estimating Net Changes in Carbon Stocks in Mineral and Organic Soils.
- Annex 3.14 – Methodology for Estimating CH4 Emissions from Landfills.
Annex 4 (363 kb PDF) – IPCC Reference Approach for Estimating CO2 Emissions from Fossil Fuel Combustion.
Annex 5 (166 kb PDF) – Assessment of the sources and sinks of greenhouse gas emissions excluded.
Annex 6 (1.2 MB PDF) – Additional Information.
Annex 7 (285 kb PDF) – Uncertainty.
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