On Friday 31 July 2026, Luxembourg’s Ministry of the Environment, Climate and Biodiversity published the provisional greenhouse gas (GHG) emissions report for 2025.
Following the publication of the report, the ministry said in a press release: “The Grand Duchy of Luxembourg has met its greenhouse gas emissions reduction targets for the sixth consecutive year.”
Total emissions
According to the ministry, the provisional estimates of greenhouse gas (GHG) emissions attributed to Luxembourg under EU Regulation 2018/842 is 6,434,039 tonnes of CO₂ equivalent are based on an initial assessment using a provisional energy balance prepared by STATEC, supplemented for non-energy-related emissions by calculations carried out by the Environment Administration and the Rural Economy Service.
The ministry emphasised that the figures remain subject to revision as STATEC updates its energy balance and final emissions data for 2025 become available.
According to the provisional report, greenhouse gas emissions in 2025 fell by almost 230,000 tonnes of CO₂ equivalent (3.5%) compared with 2024. Emissions were 17.4% below 2020 levels, a year marked by COVID-19 lockdowns, and 31.5% below 2019 levels. Compared with the 2005 baseline year, emissions have decreased by 36.4%.
Total provisional emissions for 2025 were 2% (133,000 tonnes of CO₂ equivalent) below the emissions allocation set for 2025 under the Grand Ducal Regulation of 22 June 2022, which establishes annual greenhouse gas emissions allocations for the sectors covered by Article 5 of the amended Climate Law of 15 December 2020 through to 31 December 2030.
As a result, Luxembourg remained within its emissions budget for 2025.
The ministry noted that the greenhouse gas emissions attributed to Luxembourg under EU Regulation 2018/842 do not include emissions from industrial installations covered by the EU Emissions Trading System (ETS).
Between 2024 and 2025, emissions reported by ETS installations increased by 16.9%, rising from 832,000 tonnes to 973,000 tonnes, an increase of 141,000 tonnes. This was mainly due to several ETS installations returning to normal operating levels after reduced activity in 2024 for economic reasons.
Emissions by sector
Although the emissions allocations for transport and agriculture and forestry were met in 2025, the report shows that the allocations for energy and manufacturing industries and construction, residential and commercial buildings, and waste and wastewater treatment were exceeded.
Again, the ministry emphasised that the sectoral breakdown presented in the provisional report is indicative only and may change as STATEC continues to update the national energy balance.
Sectoral emissions changed as follows:
⁃ Transport: represented 57.4% of total emissions. Emissions fell by 6.2% compared with 2024 and by 41.4% compared with 2019. They were 12.6% below the 2025 emissions allocation.
⁃ Residential and commercial buildings: represented 21.4% of total emissions. Emissions increased by 5.1% compared with 2024 but remained 14.4% below 2019 levels. They were 25.9% above the 2025 emissions allocation.
⁃ Agriculture and forestry: represented 11.3% of total emissions. Emissions increased by 5.2% compared with 2024 but remained 14.4% below 2019 levels. They were broadly in line with the 2025 emissions allocation.
⁃ Energy and manufacturing industries and construction (excluding ETS): represented 7.4% of total emissions. Emissions fell by 14.1% compared with 2024 and by 11.8% compared with 2019. They were 31.4% above the 2025 emissions allocation.
⁃ Waste and wastewater treatment: represented 2.5% of total emissions. Emissions fell by 6.8% compared with 2024 and by 21.4% compared with 2019. They were 4.5% above the 2025 emissions allocation.
The provisional report also highlighted progress since 2005. At this stage:
⁃ the transport sector has reduced emissions by 48% compared with the baseline year;
⁃ residential and commercial buildings emissions have fallen by 16%;
⁃ waste and wastewater treatment emissions have decreased by 13%;
⁃ agriculture emissions remain 5% above 2005 levels; and
⁃ emissions from energy and manufacturing industries and construction (excluding ETS) remain 7% above their reference level.
The provisional emissions report will now be analysed by the Interministerial Committee for Climate Action to assess national and sectoral progress.
The final report for 2025, based on the completed greenhouse gas emissions inventory, will be published no later than 15 March 2027.
The provisional 2025 greenhouse gas emissions report is available on www.emwelt.lu.
