EU Emissions Trading System Under Pressure: Key Concerns and Implications

Iran conflict triggers renewed debate over EU carbon market resilience

The EU Emissions Trading System faces its most serious political challenge in years. Energy prices have surged following US and Israeli military strikes on Iran that began on 28 February 2026. Gas costs jumped 70% and oil rose 60% within weeks. Consequently, some politicians now call for suspending or weakening the carbon market to provide industrial relief. However, many businesses and climate experts argue the system must remain intact.

This crisis arrives at an awkward moment. The EU planned to review the ETS in July 2026 anyway. Instead, the Iran war has forced the debate forward. EU energy ministers meet on 19 and 20 March to discuss responses. Meanwhile, carbon allowance prices have dropped to their lowest close in ten months as markets react to the geopolitical shock.

The EU Emissions Trading System began in 2005. It caps greenhouse gas emissions from power plants, industrial facilities, and aviation. Companies must buy allowances for each tonne of CO2 equivalent they emit. The system has delivered results. Emissions fell 50% since launch while economic output grew 17%. Therefore, it proves that growth and pollution can be separated.

For UK businesses, this matters beyond Europe. Many trade with EU partners or operate cross-border supply chains. Furthermore, carbon pricing debates in Brussels often influence UK policy discussions. Additionally, energy price shocks hit British companies just as hard as European ones.

The immediate cause is clear. Iran hosts the Strait of Hormuz, through which roughly 20% of global oil and liquefied natural gas normally flows. Shipping through the strait has slowed to near standstill since the strikes. As a result, European markets face supply constraints at exactly the wrong time.

How energy storage levels amplified the shock

Europe entered 2026 in a weaker position than previous years. Gas storage stood at just 46 billion cubic metres at the end of February. That compares poorly with 60 billion cubic metres in February 2025 and 77 billion cubic metres in February 2024. Lower inventories mean less buffer against supply disruptions.

Gas prices responded immediately. Initial trading on 2 March saw a 20% daily jump. Oil rose 8% the same day. These moves echoed the volatility seen during the Russia-Ukraine crisis between 2021 and 2023. However, this situation adds a new dimension. The Hormuz chokepoint affects global flows, not just pipeline routes into Europe.

The combination of low storage and geopolitical risk creates particular pressure. Winter demand remains strong. Refill seasons for storage typically run from April through October. Prolonged disruption could prevent adequate restocking before next winter. This risk keeps markets on edge.

For businesses relying on gas for manufacturing or heat, the cost impact is substantial. Energy represents a major operating expense for many sectors. Sharp price increases squeeze margins quickly. Moreover, volatile pricing makes financial planning difficult and capital investment decisions harder to justify.

Political responses diverge as member states assess options

Italy’s Prime Minister Giorgia Meloni made the most dramatic intervention. She called for immediate suspension of the ETS for fossil fuel power producers. Her argument centres on industrial competitiveness. High energy costs combined with carbon prices create what she describes as unsustainable burdens on manufacturers.

Other politicians have floated different ideas. Belgium’s Prime Minister Bart De Wever suggested reconsidering Russian fuel imports. The EU rejected this proposal quickly. Brussels insists on maintaining strategic continuity toward climate neutrality by 2050. Officials argue that reversing green policies would expose Europe to even greater fossil fuel dependency and future price shocks.

Germany and the United Kingdom took a different approach. Both governments announced increased investment in wind energy projects on 30 March. They framed this as a direct response to energy security concerns. The logic is straightforward. Domestic renewable generation reduces exposure to volatile global fossil fuel markets.

The European Commission finds itself in an uncomfortable position. One official described this as the worst possible moment to review the ETS. The scheduled July assessment was meant to be evidence-based and orderly. Instead, crisis conditions and political pressure threaten to drive hasty changes. The Commission’s mandate runs until 2029, which provides some insulation from election cycles. Nevertheless, member state governments face their own domestic political pressures.

Some observers note that the Commission reportedly made unconfirmed tweaks to ETS supply and demand balance by 12 March. Front-year carbon contracts dropped accordingly. However, official confirmation of any intervention remains limited. Markets continue to balance multiple factors including gas-driven coal demand and broader macroeconomic conditions.

Business groups defend market integrity despite price volatility

Seventeen energy and trading firms issued a joint statement warning against ad hoc interventions. They specifically referenced measures taken in 2022 during earlier energy crises. Their argument is clear. The ETS works despite price volatility. Undermining the system risks long-term climate goals and creates regulatory uncertainty.

This business position contrasts with some political rhetoric. Companies operating in carbon markets generally prefer stability and predictability. Frequent rule changes make planning difficult. Investment decisions in low-carbon technology depend on confidence that carbon prices will remain meaningful over time. Therefore, businesses often resist short-term fixes that might compromise the system’s credibility.

The split is not absolute. Some industrial sectors facing severe margin pressure may quietly support temporary relief. However, public statements from industry groups emphasize continuity. They point to the ETS track record. Emissions fell significantly while the economy grew. That outcome demonstrates the policy achieves its purpose.

For UK businesses watching these developments, several lessons emerge. First, carbon pricing systems face political risk during energy crises. Second, business constituencies often defend market mechanisms even when prices become uncomfortable. Third, the interaction between energy costs and carbon costs creates complex competitive dynamics.

Companies exporting to the EU or competing with European manufacturers need to monitor how this plays out. If the ETS weakens, European competitors might gain temporary cost advantages. Conversely, if the system holds firm, it reinforces the long-term direction toward decarbonization. That outcome would validate similar carbon pricing approaches elsewhere, potentially including expanded UK schemes.

Five key points for business decision makers

• The EU Emissions Trading System faces pressure to suspend or weaken rules as gas prices rose 70% and oil increased 60% following Iran strikes starting 28 February 2026.
• Europe’s gas storage stood at only 46 billion cubic metres in late February, compared with 60 billion cubic metres the previous year, leaving less buffer against supply shocks from the Strait of Hormuz disruption.
• Italy’s government called for ETS suspension for power producers, while the EU rejected Russian fuel imports and Germany and the UK boosted wind investment on 30 March instead.
• Seventeen energy and trading firms jointly opposed ad hoc ETS interventions, citing the system’s success in cutting emissions 50% since 2005 while economic output grew 17%.
• Carbon allowance prices dropped to ten-month lows by mid-March as markets balanced coal demand against macroeconomic pressures, with EU ministers meeting 19 to 20 March to discuss responses.

What sustained disruption could mean for decarbonization timelines

The current crisis tests whether climate policy can withstand geopolitical shocks. Europe committed to climate neutrality by 2050. That target requires sustained emissions reductions across all sectors. The ETS provides both price signals and auction revenues to fund the transition. Weakening it would slow progress.

Short-term pressures create real dilemmas. Industrial facilities facing high energy and carbon costs may cut production or shift operations to regions with lower costs. This phenomenon, often called carbon leakage, undermines both economic and environmental goals. However, suspending carbon pricing does not solve the underlying energy supply problem. It merely removes one cost while leaving businesses exposed to continued fossil fuel volatility.

Longer-term thinking suggests different priorities. Accelerating renewable energy deployment reduces dependence on imported gas and oil. Similarly, improving energy efficiency lowers total demand regardless of fuel source. Both strategies require upfront investment. The ETS generates revenue that can support such investments. Therefore, maintaining the system serves strategic energy security alongside climate objectives.

Research from Bruegel, a Brussels-based think tank, emphasizes this point. They argue that Europe needs contingency plans for supply security. However, those plans should not derail decarbonization. The goal is managing the transition, not abandoning it. This perspective aligns with business groups defending ETS integrity.

For UK companies, the European debate offers a preview of tensions that could emerge in any carbon pricing system during energy crises. Our compliance support services help businesses navigate carbon reporting requirements and prepare for policy uncertainty. Understanding how carbon markets respond to external shocks informs better risk management.

The timing of this crisis also matters. Had it occurred later in the year with higher gas storage levels, the pressure might be less intense. Conversely, if disruption continues through spring and summer, refilling storage becomes problematic. That would extend high prices well into 2027 and intensify political pressure on the ETS.

Comparing current volatility with previous energy crises

The Russia-Ukraine conflict beginning in 2021 provides the most recent comparison. European gas prices spiked dramatically as Russian pipeline supplies became unreliable. Governments responded with various measures including price caps, subsidies, and demand reduction campaigns. The ETS faced criticism then too. However, the system survived largely intact.

This Iran crisis differs in important ways. The Hormuz disruption affects global LNG flows, not just European pipelines. Therefore, alternative suppliers face constraints delivering additional volumes to Europe. Additionally, global oil markets react more directly to Middle East conflicts than to Eastern European pipeline politics. The result is broader commodity price increases.

Another difference is storage levels. Europe emerged from the Russia-Ukraine crisis with strong storage discipline. Countries prioritized refilling reserves. By contrast, the combination of colder recent winters and the current low starting point creates more acute vulnerability. Markets recognize this and price accordingly.

Despite these differences, some patterns repeat. Politicians face pressure to provide immediate relief to voters and industries. Business communities split between those seeking short-term cost reduction and those prioritizing long-term policy stability. Climate advocates warn against backsliding. The EU institutions defend existing commitments while seeking pragmatic adjustments.

What remains unclear is how long the current disruption will last. Geopolitical conflicts follow unpredictable paths. Energy markets will remain volatile until either Hormuz shipping resumes or alternative supply routes scale up sufficiently. In the meantime, European policymakers must balance competing pressures.

UK businesses should consider several implications. First, European energy costs affect competitiveness for companies trading across borders. Second, policy responses in Brussels may influence UK government thinking on carbon pricing and energy security. Third, supply chain resilience depends partly on how European partners manage through this crisis.

Our net zero program helps businesses develop carbon reduction strategies that account for policy uncertainty and energy market volatility. Understanding these dynamics supports more resilient planning.

Where to find authoritative information and analysis

The European Commission publishes regular updates on ETS operations and policy developments. Their climate action website provides official data on allowance prices, auction results, and emissions covered by the system. This resource helps businesses track market conditions and regulatory changes.

For energy market analysis, the International Energy Agency offers detailed reporting on gas and oil markets. Their monthly reports include supply and demand forecasts, storage data, and geopolitical risk assessments. This context helps interpret price movements and supply security concerns.

The Bruegel think tank produces research on European economic policy, including energy and climate issues. Their analysis often bridges technical detail and policy implications, making it useful for business strategists assessing how European decisions might affect operations.

UK businesses should also monitor Department for Energy Security and Net Zero publications. While focused on domestic policy, they frequently reference European developments and their potential UK impacts. Understanding how UK policy responds to European energy crises informs compliance planning.

Trade associations relevant to specific sectors often provide tailored analysis. Manufacturing, energy-intensive industries, and logistics sectors each face distinct implications from carbon pricing and energy cost changes. Industry-specific guidance helps translate broad policy debates into operational considerations.