By Leah Garden April 8, 2025

Key takeaways

• The EU’s cap-and-trade scheme — the Emissions Trading System (ETS) — released data showing that participating sectors have reduced emission to 50 percent of 2005 levels.
• The reductions keep the EU on track to meet its 62 percent emissions decrease by 2030 goal — thanks, in large part, to a 12 percent reduction in the power sector.
• The ETS’s progress proves climate mitigation economics can be a success, just as the EU has been slowly shifting right after its 2024 elections.

The European Union’s oft-criticized Emissions Trading System (EU ETS) has reduced emissions from participating sectors by 50 percent, according to new data, in the process helping the EU stay on track to achieve its 2030 target of lowering emissions by 62 percent.

The scheme assigns a cap to the CO₂ produced by companies, while creating incentives to reduce those emissions. EU ETS is similar to cap-and-trade laws established in U.S. states, including Washington and California. European companies purchase a set amount of emission allowances that covers their expected emissions for one year. If a company emits more than its allotted allowances, it must either purchase allowances from other companies that came in under their cap, or pay a fine.

The price of carbon is set by the market, as companies buy and sell allowances.

As of March 31, sectors covered by the system demonstrated a 5 percent reduction in total emissions in 2024, compared to 2023, cutting ETS emissions to around half of 2005 levels.

The sectors covered include:

• Electricity generation: The leading sector in decreasing emissions, power producers reduced emissions by 12 percent below 2023 levels, driven mostly by increased renewable energy.
• Industry: The most wide-reaching of the categories, this. Industry emissions remained stable from 2023 to 2024.
• Aviation: The only category to see a rise in emissions, which increased by 15 percent compared to 2023, likely due to the re-inclusion of non-domestic flights