Greenhouse Gas Emissions
Annual greenhouse gas inventories are required by Iowa Code 455B.104 which states that "by December 31, of each year, the department shall submit a report to the governor and the general assembly regarding the greenhouse gas (GHG) emissions in the state during the previous calendar year and forecasting trends in such emissions...." The most recent report focuses on calendar year 2023 GHG emissions.
The 2023 GHG Inventory is a "top-down" inventory based on statewide activity data from agriculture, fossil fuel combustion, industrial processes, natural gas transmission and distribution, transportation, solid waste, and wastewater treatment. It also includes carbon sequestered or emitted from land use, land use change, and forestry (LULUCF). GHGs included in the inventory are carbon dioxide (CO 2), methane (CH4), nitrous oxide (N2O), perfluorocarbons (PFC), hydrofluorocarbons (HFC), and sulfur hexafluoride (SF6).
Send questions to Krysti Mostert at Krysti.Mostert@dnr.iowa.gov.
Annual GHG Inventories
- Greenhouse Gas Emissions Dashboard
- 2023 GHG Inventory Report
- 2023 GHG Inventory Report - Technical Support Document
- 2022 GHG Inventory Report
- 2022 GHG Inventory Report - Technical Support Document
- 2021 GHG Inventory Report
- 2021 GHG Inventory Report - Technical Support Document
- 2020 GHG Inventory Report
- 2020 GHG Inventory Report - Technical Support Document
- 2019 GHG Inventory Report
- 2019 GHG Inventory Report - Technical Support Document
Greenhouse Gas Estimation Tools
- Greenhouse Gas Emissions Estimation Guidance
- Stationary Fossil Fuel Combustion Calculation Tool Revised on 03/22/17 to use new global warming potentials.
- Federal Greenhouse Gas Reporting Program
- HFC and PFC Chemical Names, Trade Names, and Blends
- Revised 1996 IPCC Guidelines for National Greenhouse Gas Inventories
- Clearinghouse of Non-CO2 GHG Control Technologies - The California Air Resources Board (ARB) has posted a clearinghouse of non-CO2 GHG control technologies on its website. The technologies can be used to reduce emissions of non-CO2 greenhouse gases, such as methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons, sulfur hexafluoride and black carbon.