EU economy greenhouse gas emissions: +1.1% in Q3 2025

The EU economy's seasonally adjusted greenhouse gas emissions in the third quarter of 2025 were estimated at 828 million tonnes of CO2-equivalents (CO2-eq), a 1.1% increase compared with the second quarter of 2025 (819 million tonnes of CO2-eq). At the same time, the EU's gross domestic product (GDP) increased by 0.4% in the third quarter of 2025, compared with the previous quarter of 2025.

This information comes from data on seasonally adjusted quarterly estimates of greenhouse gas emissions by economic activity published by Eurostat today. Quarterly estimates of greenhouse gas emissions complement quarterly socio-economic data, such as GDP or employment. This article presents the key findings from the more detailed Statistics Explained article on quarterly greenhouse gas emissions.

The economic sectors with the largest increases in greenhouse gas emissions were households (+3.6%) and manufacturing (+1.4%). Electricity, gas, steam and air conditioning supply (-0.8%) was the only sector that recorded a decrease.

Source datasets: env_ac_aigg_q and namq_10_gdp

Compared with the third quarter of 2024, seasonally adjusted emissions remained unchanged, while the EU's seasonally and calendar adjusted GDP increased by 1.6%.

Greenhouse gas emissions decreased in 10 EU countries

In the third quarter of 2025, seasonally-adjusted greenhouse gas emissions increased in 17 EU countries and decreased in 10 countries compared with the second quarter of 2025.
The largest reductions in greenhouse gases were estimated for Estonia (-17.4%), Slovenia (-5.7%) and Cyprus (-5.2%).

Out of the 10 EU countries that registered decreases in greenhouse gas emissions, only Lithuania recorded also a decline in GDP. The other 9 EU countries (Bulgaria, Estonia, Croatia, Cyprus, Latvia, Lithuania, Portugal, Romania and Slovenia) have decreased emissions while growing or maintaining their GDP levels.

Source datasets: env_ac_aigg_q and namq_10_gdp