Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2020

Last updated: 18 January 2023

The Environmental Protection Agency maintains the Inventory of U.S. Greenhouse Gas Emissions and Sinks to meet annual commitments under the United Nations Framework Convention on Climate Change, based on the methodologies recommended by the Intergovernmental Panel on Climate Change. The inventory estimates greenhouse gas emissions across all sectors of the national economy. It aggregates national information on fuel use, fossil fuel combustion, industrial processes, agricultural sources and other data.

While the inventory is presented through a Report, raw data can also be exported through the Data Explorer. The Inventory is supported by and used in conjunction with the Greenhouse Gas Reporting Program (GHGRP), which collects detailed emissions data from the largest GHG-emitting facilities in the U.S.

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