Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2018

View the Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990–2018 (published 2020), developed by the U.S. Government to meet annual U.S. commitments under the United Nations Framework Convention on Climate Change (UNFCCC).

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2020 Complete Report (PDF)(733 pp, 14 MB, April 13, 2020, 430-R-20-002)
2020 Upfront (PDF)(6 pp, 525 K, April 13, 2020, 430-R-20-002)
Includes title page, acknowledgments, and preface.
2020 Table of Contents (PDF)(21 pp, 475 K, April 13, 2020, 430-R-20-002)
2020 Executive Summary (PDF)(30 pp, 2 MB, April 13, 2020, 430-R-20-002)
2020 Chapter 1: Introduction (PDF)(29 pp, 851 K, April 13, 2020, 430-R-20-002)
Includes background information on greenhouse gas emission inventories, an introduction to climate change, an overview of institutional arrangements and compilation process for this inventory, including methods, data, QA/QC and an uncertainty analysis.
2020 Chapter 2: Trends in Greenhouse Gas Emissions (PDF)(39 pp, 2 MB, April 13, 2020, 430-R-20-002)
2020 Chapter 3: Energy (PDF)(116 pp, 3 MB, April 13, 2020, 430-R-20-002)
Discusses and quantifies energy-related emissions of all greenhouse gases resulting from stationary and mobile source activities, including fuel combustion and fugitive fuel emissions.
2020 Chapter 4: Industrial Processes and Product Use (PDF)(148 pp, 2 MB, April 13, 2020, 430-R-20-002)
Addresses emissions from industrial processes and product use (not including fuel combustion).
2020 Chapter 5: Agriculture (PDF)(59 pp, 3 MB, April 13, 2020, 430-R-20-002)
2020 Chapter 6: Land Use, Land-Use Change, and Forestry (PDF)(143 pp, 3 MB, April 13, 2020, 430-R-20-002)
Addresses emissions and removals from forest and land-use change activities, primarily carbon dioxide.
2020 Chapter 7: Waste (PDF)(41 pp, 921 K, April 13, 2020, 430-R-20-002)
Addresses emissions from waste management activities.
2020 Chapter 8: Other (PDF)(1 pg, 157 K, April 13, 2020, 430-R-20-002)
Addresses emissions from the "Other" IPCC sector.
2020 Chapter 9: Recalculations and Improvements (PDF)(7 pp, 470 K, April 13, 2020, 430-R-20-002)
Includes an overview of changes in this year's report, including historical data, methodology and other changes relative to the previous Inventory report (e.g. 1990–2017).
2020 Chapter 10: References (PDF)(94 pp, 902 K, April 13, 2020, 430-R-20-002)
2020 All Annexes (PDF)(597 pp, 15 MB, April 13, 2020, 430-R-20-002)
2020 Annex Introduction and Table of Contents (PDF)(2 pp, 291 K, April 13, 2020, 430-R-20-002)
2020 Annex 1: Key Category Analysis (PDF)(53 pp, 924 K, April 13, 2020, 430-R-20-002)
2020 Annex 2: Methodology and Data for Estimating CO2 Emissions from Fossil Fuel Combustion (PDF)(108 pp, 2 MB, April 13, 2020, 430-R-20-002)
2020 Annex 3 - Part A: Methodological Descriptions for Additional Source or Sink Categories (PDF)(135 pp, 3 MB, April 13, 2020, 430-R-20-002)
2020 Annex 3 - Part B: Methodological Descriptions for Additional Source or Sink Categories (PDF)(183 pp, 4 MB, April 13, 2020, 430-R-20-002)
2020 Annex 4: IPCC Reference Approach for Estimating CO2 Emissions from Fossil Fuel Combustion (PDF)(11 pp, 380 K, April 13, 2020, 430-R-20-002)
2020 Annex 5: Assessment of the Sources and Sinks of Greenhouse Gas Emissions Not Included (PDF)(11 pp, 404 K, April 13, 2020, 430-R-20-002)
2020 Annex 6: Additional Information (PDF)(28 pp, 565 K, April 13, 2020, 430-R-20-002)
2020 Annex 7: Uncertainty (PDF)(12 pp, 396 K, April 13, 2020, 430-R-20-002)
2020 Annex 8: QA/QC Procedures (PDF)(50 pp, 688 K, April 13, 2020, 430-R-20-002)
2020 Expert Review Comment Response (PDF)(53 pp, 1 MB)
2020 Public Review Comment Response (PDF)(32 pp, 1 MB)
2020 Annex 9: Use of EPA Greenhouse Gas Reporting Program in Inventory (PDF)(5 pp, 285 K, April 13, 2020, 430-R-20-002)

Greenhouse Gas Emissions

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Greenhouse Gas Emissions