Brussels Closes In On Shipping's Carbon Detour
Brussels is looking again at the weak points in the EU's maritime carbon regime. The Financial Times reports that the European Commission is considering tighter rules to reduce the incentive for ships to avoid EU ETS exposure through calls at nearby non-EU ports.
The EU's maritime carbon regime was always going to face a Mediterranean test. Shipping is mobile. Ports are not. A vessel can change a rotation, add a call, split a voyage or test the edges of a regulation. A quay, a terminal, a workforce and a grid connection cannot move with it.
That is why the latest signal from Brussels matters. According to the Financial Times, the European Commission is considering tighter EU ETS rules to reduce the incentive for ships to call at nearby non-EU ports before entering the bloc, thereby lowering their carbon exposure. The reported review would look at traffic involving North African, Middle Eastern and potentially UK ports.
This is not a technical footnote. It is the political heart of Europe's maritime decarbonisation project.
Since January 2024, the EU ETS has covered CO2 emissions from large ships of 5,000 gross tonnage and above entering EU ports. The system applies to 100% of emissions between EU ports and at berth, and 50% of emissions on voyages between EU and non-EU ports. Methane and nitrous oxide enter the ETS scope from 2026.
The obligation is phased in: 40% of 2024 emissions must be covered in 2025, 70% of 2025 emissions in 2026, and full coverage follows thereafter.
The logic is sound. Maritime transport accounts for roughly 3-4% of the EU's total CO2 emissions, and carbon pricing is intended to make cleaner operations more attractive. But the politics are harder. If the rules create a financial reason to reorganise routes around Europe rather than decarbonise them, the policy loses authority. Worse, it risks exporting activity without cutting emissions.
That is the loophole Brussels appears determined to close.
The Mediterranean sits at the centre of this debate. The region is not just a shipping basin; it is Europe's frontier with fast-growing non-EU port capacity. The Commission's own monitoring has already recognised the sensitivity of neighbouring hubs. East Port Said and Tanger Med are identified in existing ETS safeguards as neighbouring container transhipment ports, and the Commission's 2025 analysis noted major capacity growth in non-EU Mediterranean ports, even while saying there was no clear evidence yet of generalised ETS-driven relocation.
That distinction matters. Policymaking should not become panic. The Red Sea crisis, fleet redeployment, terminal investment cycles and carrier alliances all shape port calls. Not every route change is a carbon arbitrage strategy. But neither should Europe wait until the market has permanently adjusted before acting.
The right approach is surgical. Brussels should protect the integrity of the ETS while avoiding a blunt measure that turns Mediterranean competitiveness into collateral damage. That means monitoring real traffic patterns, closing obvious avoidance routes, and recycling maritime ETS revenues into the infrastructure that allows ports, terminals and shipowners to comply: shore power, grid upgrades, charging systems, alternative fuels, storage and digital energy management.
For ports, the lesson is also clear. The ETS debate is no longer only about compliance cost. It is about infrastructure readiness. The ports and maritime authorities that can show credible electrification plans, berth-side power, cleaner energy procurement and investment pipelines will be better placed in the next policy cycle.
Europe is trying to defend a simple principle: carbon pricing must change behaviour, not geography. If Brussels gets this right, the ETS can become a catalyst for cleaner maritime infrastructure. If it gets it wrong, it risks turning climate policy into a routing game.
