An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Landfill Methane Outreach Program (LMOP)

Methane Emissions Overview

This “Methane 101” presentation provides a comprehensive overview of the sources of methane emissions in the United States, why methane matters and how to mitigate its emissions based on the source. These slides cover the coal mining, oil and natural gas systems, agriculture and waste sectors, pulling emissions data from EPA’s Inventory of U.S. Greenhouse Gases and Sinks and other data from the voluntary EPA programs that track methane recovery and use projects.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.