National Greenhouse Gas Inventory
The EPA has overall responsibility for the national greenhouse gas inventory in Ireland's national system and compiles Ireland's annual greenhouse gas emission inventory and projections.
The greenhouse gas emission inventory is a compilation of historical greenhouse gas emissions from the ten following sectors; Agriculture, Transport, Energy Industries, Residential, Manufacturing Combustion, Industrial Processes, F Gases, Waste, Commercial Services and Public Services. Emissions data from 1990 to the most recent year for which data is available for the following gases is reported: Carbon Dioxide (CO2,) Methane (CH4), Nitrous oxide (N2O), Hydrofluorocarbons (HFCs), Perflurocarbons (PFCs), Sulphur Hexafluoride (SF6), and Nitrogen Trifluoride (NF3).
Ireland’s National Inventory Report 2024 provides final estimates of greenhouse gas emissions for the period 1990–2022, offering detailed and transparent data across all sectors. The final 2022 national greenhouse gas emissions are reported as 60.60 million tonnes of carbon dioxide equivalent (Mt CO₂eq), reflecting a decrease driven by reductions across most major sectors—energy industries, agriculture and industry.
The 2022 total represents a year‑on‑year decrease, falling from 61.53 Mt CO₂eq in 2021 to 60.60 Mt CO₂eq in 2022. Despite this reduction, Ireland still exceeded its 2022 annual limit under the EU Effort Sharing Regulation, surpassing the allowable allocation by 3.54 Mt CO₂eq.
Further Information
For more information on Ireland's greenhouse gas emissions inventory and projections visit the
EPA’s Greenhouse Gas Emissions resource.