Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2021

View the Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990–2021 (published 2023), developed by the U.S. Government to meet annual commitments under the United Nations Framework Convention on Climate Change (UNFCCC).

For a list of all archived reports, view the U.S. Greenhouse Gas Inventory Report Archive.

For the most recent report, view EPA's Inventory of U.S. Greenhouse Gas Emissions and Sinks.

Download the Report Tables

• 2023 Main Report Tables (zip)  - A separate comma-separated values (CSV) file for each table within the main report. Each CSV includes the full timeseries as applicable. (corrected per corrigenda)
• 2023 Annex Tables (zip)  - A separate comma-separated values (CSV) file for each table within the Annex. Each CSV includes the full time series as applicable. (corrected per corrigenda)

View the Report

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• 2023 Executive Summary (pdf) (1.39 MB, April 14, 2023, 430-R-23-003)
• 2023 Complete Report (pdf) (15.07 MB, April 14, 2023, 430-R-23-003)
  Full, complete Inventory report. Corrected per corrigenda.
• 2023 All Annexes (pdf) (9.22 MB, April 14, 2023, 430-R-23-002)
  Full, complete Annex which contains further information, more detailed explanations of methodologies, more detailed data, and additional information on greenhouse gas emissions and sinks, supplementing the main Inventory document.
• 2023 Expert Review Comments and Responses (pdf) (2.2 MB)
  Summary of Expert Review comments and responses.
• 2023 Public Review Comments and Responses (pdf) (635.66 KB)
  Summary of Public Review comments and responses.
• 2023 Corrigenda (pdf) (123.03 KB)
  Includes documented changes made to the main text and annex documents after the initial publication.
• Data Highlights, 1990-2021 (pdf) (2.44 MB, April 2023, 430-F-23-001)