New U.S. Greenhouse Gas Emissions Inventory and Analysis Published by CGS

Aerial wide shot of a large coal-fired power plant nestled in a lush, mountainous valley. Two massive, slender concrete chimneys dominate the center, flanked by a shorter white cooling tower emitting a plume of steam. To the left, a large pile of coal sits near conveyor belts and rail lines, while a river curves around the facility in the foreground, all set against a backdrop of rolling green hills and a hazy blue mountain range under a warm, sunset-lit sky.

Assistant Research Professor Lindsay "Bar" Barbieri in the Department of Geographical Sciences (Global Land Programme) is a co-author of the report, which presents a detailed analysis of the greenhouse gas sources and sinks in the United States.

The Center for Global Sustainability has published the Greenhouse Gas Inventory and Analysis for the United States (GHGIA). The GHGIA provides critical national-level data on emissions sources and sinks of all major greenhouse gases, including quantities of specific greenhouse gases being emitted and across all economic sectors. The inventory covers updated annual data from 1990 through 2024 and is consistent with previous versions of the annual U.S. greenhouse gas inventory published by the U.S. Environmental Protection Agency (EPA). Both the data and a report detailing the results are available for download on the CGS GHGIA website.

The report has grounded the data collection, analysis, and presentation in practices that enable comparability and continuity with past official U.S. inventories prepared by the U.S. Environmental Protection Agency. The report adheres to good practice as defined by the Intergovernmental Panel on Climate Change and adheres to international standards for transparency, accuracy, completeness, comparability, and consistency. Such information is critical for subnational governments, researchers, and businesses that rely on these data for their own internal processes, as well as to support international understanding of U.S. emission trends. 

Read the full press release

Image from the Center for Global Sustainability website

Published on Wed, 04/15/2026 - 12:50