Greenhouse Gas Emissions

Inventory of U.S. Greenhouse Gas Emissions and Sinks

EPA develops an annual report, called the Inventory of U.S. Greenhouse Gas Emissions and Sinks (Inventory), that tracks U.S. greenhouse gas emissions and sinks by source, economic sector, and greenhouse gas going back to 1990.  Each year since the 1990s, EPA has published the draft report in February, to allow for public comment prior to publishing the final report by April 15. 

Draft Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2015

Per an announcement in the Federal Register (FR) [FRL_ 9959-29-OAR], the draft 1990-2015 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 17, 2017.  Comments can be sent to 

How to submit a comment. 

About the Emissions Inventory

EPA has prepared the Inventory of U.S. Greenhouse Gas Emissions and Sinks since the early 1990s.  This annual report provides a comprehensive accounting of total greenhouse gas emissions for all man-made sources in the United States. The gases covered by the Inventory include carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride. The Inventory also calculates carbon dioxide emissions that are removed from the atmosphere by “sinks,” e.g., through the uptake of carbon and storage in forests, vegetation, and soils.

The national greenhouse gas inventory is submitted to the United Nations in accordance with the Framework Convention on Climate ChangeExit. In preparing the annual emissions inventory report, EPA collaborates with hundreds of experts representing more than a dozen U.S. government agencies, academic institutions, industry associations, consultants and environmental organizations.  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.

Draft Report

View or download the Draft Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990–2015 (February 2017), including an executive summary, individual chapters, and annexes.

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