Methodology Report: Inventory of U.S. Greenhouse Gas Emissions and Sinks by State: 1990-2022
This report describes methods used to compile the annual publication of national anthropogenic greenhouse gas (GHG) emissions and sinks disaggregated by U.S. state consistent with the latest Inventory of U.S. Greenhouse Gas Emissions and Sinks (national Inventory hereafter). View background on state data.
By April of each year, the U.S. Environmental Protection Agency (EPA) prepares the official national Inventory, presenting time-series estimates by gas, source/sink, and sector. The latest national Inventory includes estimates from 1990–2022. This state-level report is a complementary publication released annually after the national Inventory report. The state level report is best read in conjunction with the national Inventory. Download the methodology report below.
- Full Methodology Report (pdf)
- Chapter 1. Introduction (pdf)
- Chapter 2. Energy (pdf)
- Chapter 3. Industrial Process and Product Use (pdf)
- Chapter 4. Agriculture (pdf)
- Chapter 5. Land Use, Land-Use Change, and Forestry (pdf)
- Chapter 6. Waste (pdf)
- Appendix A. Data Appendices (pdf)
- Data Appendices A-I zip file (zip)
- Appendix B. State-level GHG Data Caveats (pdf)
- Corrigenda for State Data and Supporting Information (pdf)
Download state-level GHG data
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