The European Commission has put forward a proposal aimed at reducing future price volatility in its carbon market, the EU Emissions Trading System (ETS).
This move is a delicate balancing act. On one hand, there's political pressure to tame the wild price swings that make businesses and investors nervous. On the other hand, the Commission wants to preserve the long-term effectiveness of the ETS, which relies on a limited supply of emission allowances to make pollution costly. So, the proposal focuses on creating better 'guardrails' for the market without immediately flooding it with more allowances.
The key message is that there will be no immediate change to the supply of allowances. This is credible for a few reasons. First, the ETS has a built-in emergency brake called 'Article 29a' for 'excessive price fluctuations', but current prices are less than half the level needed to trigger it. The brake remains firmly off. Second, policymakers have been signaling this move for months, emphasizing a reform of the Market Stability Reserve (MSR)—an automatic tool that adjusts supply—before any broader changes. Third, market analysis confirms the MSR isn't expected to release extra allowances until well into the 2030s, meaning no short-term supply boost is on the horizon.
So how did we get here? The story unfolded over the past few months. First, carbon prices saw a sharp drop of over 20% between January and February 2026. This slide amplified political calls to 'do something' about volatility. In response, key officials began publicly stating their intention to prioritize stability tools first, effectively setting market expectations for a rule change, not a supply shock. Finally, with policies like the Carbon Border Adjustment Mechanism (CBAM) linking import costs to carbon prices, the political need to ensure a stable market has become more urgent than ever.
Ultimately, the Commission is signaling a 'rules first, supply later' approach. By focusing on calibrating the system's shock absorbers, it aims to build confidence and reduce speculative volatility, all while keeping the core principle of long-term carbon scarcity intact.
- Glossary -
- EU ETS (Emissions Trading System): The EU's main climate policy tool. It sets a cap on total emissions and allows companies to buy or sell permits (allowances) to emit CO2.
- MSR (Market Stability Reserve): An automated mechanism designed to stabilize the carbon market by adjusting the supply of allowances, removing them when there's a surplus and releasing them in a shortage.
- EUA (EU Allowance): A permit that gives the holder the right to emit one tonne of CO2. It is the basic currency of the ETS.