Non-CO2 Greenhouse Gas Emission Projections & Mitigation

Between 1990 and 2015, global non-CO₂ emission levels rose by about 29%. Between 2015 and 2030, global non-CO₂ emissions are estimated to continue to increase by approximately 17% under a business-as-usual scenario.
In 2030, the total global non-CO₂ GHG mitigation potential is estimated to be approximately 3,807 MtCO2e, or 27% of non-CO₂ GHG emissions in that year.
Methane accounts for the largest percentage of total U.S. non-CO₂ emissions in 2030 followed by nitrous oxide and fluorinated GHGs. The total non-CO2 GHG mitigation potential in 2030 is estimated to be over 350 million metric tons of carbon dioxide equivalent.

The EPA non-CO₂ greenhouse gas (GHG) technical report series provides projected estimates of emissions and technical and economic mitigation estimates of non-CO₂ GHGs form anthropogenic sources for 195 countries and for all 50 states in the U.S.

These non-CO₂ GHG datasets provide information that can be used to understand national and sub-national contributions of GHG emissions and mitigation opportunities, and are of particular use to economic and integrated assessment models that evaluate the effect of GHG emissions and the cost and availability of mitigation from the non-CO₂ GHG sectors.

Global Non-CO₂ Greenhouse Gas Emission Projections & Mitigation Potential: 2015-2050 EPA-430-R-19-010
U.S. State-level Non-CO₂ Greenhouse Gas Mitigation Potential: 2025-2050 EPA-430-R-22-001

Non-CO₂ GHG Data Tool

The accompanying data sets to these reports are also available through the Non-CO₂ Greenhouse Gas Data Tool. This is a data exploration tool for querying and visualizing the non-CO₂ GHG projections and mitigation assessments compiled in the report.

Non-CO₂ Greenhouse Gas Data Tool

Methodology Report

The full peer-reviewed methodology used to develop the emission projections and mitigation estimates is documented in the peer-reviewed EPA report Global Non-CO₂ Greenhouse Gas Emissions Projections & Marginal Abatement Cost Analysis: Methodology Documentation.

Non-CO2 Methodology Report (pdf) (4.19 MB, EPA-430-R-19-012)

Methodology Report Appendices (ZIP) (zip)

Non-CO2 Greenhouse Gas Emission Projections & Mitigation

Non-CO2 GHG Data Tool

Methodology Report

Non-CO₂ GHG Data Tool