With climate ambitions in question, EU reforms carbon market
The European Union is reforming its Emissions Trading System (ETS) as part of a scheduled medium-term review, with the European Commission proposing updated free-allocation benchmarks and a roughly €30 billion "ETS Investment Booster."
The reform has become contested, with carbon-intensive member-state economies pushing to loosen emission-cost rules while other member states have defended the system's current stringency.
Under discussion are concessions that would let certain European industries continue emitting for longer, and at lower carbon cost, than the timelines set in earlier ETS legislation.
Any final reform text needs agreement among all 27 EU member states and the European Parliament before taking effect.
The reform debate is occurring alongside the full entry into force of the EU's Carbon Border Adjustment Mechanism (CBAM), which begins charging importers for embedded carbon in select goods from 2026.
EU Emissions Trading System (EU ETS)
The EU ETS, launched in 2005, is the world's first and largest multi-country carbon "cap-and-trade" market. A declining cap is set on total greenhouse gas emissions from covered installations; companies receive or buy tradable allowances (EU Allowances, EUAs), and must surrender one allowance per tonne of CO2-equivalent emitted, creating a market-driven carbon price. The system has evolved through phases — Phase 1 began in 2005 with a cap of roughly 2,096 million tonnes CO2-equivalent, Phase 2 in 2008 lowered the cap further, and the system is currently in its fourth trading phase (2021-2030). It covers power generation, energy-intensive industry, and (increasingly) aviation and maritime shipping. Under the current trajectory, the allowance cap is set to shrink by 4.3-4.4% annually from 2024-2030, targeting a 62% emissions cut in covered sectors by 2030 relative to 2005 levels.
Key Details
- Launched 2005; currently in Phase 4 (2021-2030).
- Cap-and-trade design: total emissions capped, allowances traded, price set by market (cap-and-trade, not a carbon tax).
- Annual cap reduction of 4.3-4.4% (2024-2030) targeting a 62% reduction in covered-sector emissions by 2030 vs. 2005.
- Sectors covered: power/heat generation, energy-intensive manufacturing, aviation, and (recently added) maritime shipping.
- Free allocation of allowances to industry is being phased down over time, which is the specific mechanism at the centre of the current reform dispute.
The reform under discussion revises exactly these free-allocation benchmarks and cap timelines — carbon-intensive economies want slower phase-down, while other states want to preserve the 2030 reduction trajectory.
Carbon Border Adjustment Mechanism (CBAM)
CBAM is the EU's mechanism to charge a carbon-equivalent levy on selected imports (initially iron and steel, cement, aluminium, fertilisers, hydrogen, and electricity) based on the embedded emissions of their production, designed to prevent "carbon leakage" as EU industry faces rising internal carbon costs and to create a level playing field with non-EU producers who do not price carbon. It ran a reporting-only transitional phase from October 2023, and entered its definitive, charge-levying phase from 1 January 2026, with the first financial declaration and certificate-surrender deadline set for 30 September 2027 (covering 2026 import emissions). As CBAM phases in, the free allowances EU industry currently receives under the ETS for CBAM-covered sectors are being phased out in parallel, from a "CBAM factor" of 97.5% free allocation in 2026 down to about 14% by 2033.
Key Details
- Transitional/reporting-only phase: October 2023 onward.
- Definitive phase with actual carbon charges on imports: from 1 January 2026.
- First declaration/certificate-surrender deadline: 30 September 2027.
- Free-allocation phase-out for CBAM sectors: from 97.5% (2026) to roughly 14% (2033), linked directly to the ETS reform being negotiated.
- Sectors initially covered: iron and steel, cement, aluminium, fertilisers, hydrogen, electricity.
CBAM's phase-in is a direct trigger for the current ETS reform fight, since the pace of free-allowance withdrawal under ETS is legally tied to CBAM's rollout — countries and export-heavy sectors, including exporters to the EU such as India, have a direct stake in these timelines.
Comparing Carbon Market Mechanisms: EU ETS vs India's CCTS vs Paris Agreement Article 6
Carbon markets take several distinct institutional forms. The EU ETS is a mature, mandatory, absolute-cap-and-trade system operating since 2005. India's Carbon Credit Trading Scheme (CCTS), notified in 2023, is instead an intensity-based baseline-and-credit compliance market: obligated entities in initially eight (later refined to seven active, two pending) energy-intensive sectors — aluminium, cement, chlor-alkali, pulp and paper, petroleum refining, petrochemicals, textiles, plus pending iron & steel and fertilizer — are set Greenhouse Gas Emissions Intensity (GEI) targets (baseline year FY2024, compliance years FY2026-FY2027); entities beating their target earn tradable Carbon Credit Certificates (CCCs), while shortfalls require purchasing certificates. It is governed by a National Steering Committee for the Indian Carbon Market (NSCICM), co-chaired by the Ministry of Power and Ministry of Environment, Forest and Climate Change, with the Bureau of Energy Efficiency as scheme administrator. At the international level, Paris Agreement Article 6 provides three distinct cooperative mechanisms: Article 6.2 allows bilateral/plurilateral trading of Internationally Transferred Mitigation Outcomes (ITMOs) between countries; Article 6.4 establishes a centralised, UN-supervised global crediting mechanism (successor to the Kyoto Protocol's Clean Development Mechanism); and Article 6.8 covers non-market cooperative approaches such as joint technology transfer and adaptation finance that do not involve trading of credits.
Key Details
- EU ETS: absolute cap-and-trade, mandatory, operating since 2005.
- India CCTS: intensity-based baseline-and-credit system, notified 2023, compliance years FY2026-FY2027, baseline year FY2024.
- Paris Agreement Article 6.2: bilateral/multilateral ITMO trading; Article 6.4: centralised UN-supervised crediting market; Article 6.8: non-market cooperation.
- India's CCTS is designed to eventually interoperate with, and generate credits eligible under, the Article 6 international carbon market framework.
The EU ETS reform debate is a live example of how a mature cap-and-trade carbon market balances industrial competitiveness against climate ambition — a comparative lens UPSC frequently uses to test India's much younger CCTS and the still-evolving Article 6 rulebook.
- EU ETS launched 2005; currently in Phase 4 (2021-2030); annual cap cut of 4.3-4.4% (2024-2030) targeting a 62% reduction in covered-sector emissions by 2030 vs. 2005 levels.
- Proposed EU reform package includes an approximately €30 billion "ETS Investment Booster" and revised free-allocation benchmarks.
- CBAM's definitive (charge-levying) phase began 1 January 2026; first certificate-surrender deadline is 30 September 2027.
- CBAM-linked ETS free-allocation phase-out: 97.5% free in 2026, declining to about 14% by 2033.
- India's CCTS (notified 2023) covers about 490 industrial units initially across seven sectors, with compliance years FY2026-FY2027.
- Any EU ETS reform requires agreement of all 27 member states plus the European Parliament.