Greenhouse Gas Emissions Trading Scheme (Amendment) (Extension to Maritime Activities) Order 2026

Earl Russell Excerpts

Thursday 12th March 2026 Lords Chamber

[Earl Russell (LD)]

My Lords, I will respond to this SI and the regret amendment in the name of the noble Lord, Lord Moynihan. My noble friend Lady Suttie will respond to the specific points raised in the fatal amendment tabled by the noble Baroness, Lady Hoey.

This order extends the UK trading scheme to cover emissions from carbon dioxide, methane and nitrous oxide from domestic maritime activities for vessels over 5,000 gross tonnage, including in-port emissions, from 1 July 2026. It implements decisions of the UK ETS authority, agreed by all four Governments of the United Kingdom, and has already passed by a substantial majority in the other place. It is part of our broader strategy to decarbonise all sectors of the UK economy and to meet our legally binding 2050 net-zero targets.

To be clear, we support the order and we will not vote in favour of either the regret amendment or the other amendment. We believe, though, that the SI needs to meet three tests: it needs to have environmental integrity, economic fairness and practical deliverability. It must also support the UK’s wider trading interests, including our growing relationship with the European Union. The Liberal Democrats start from a clear point of principle: carbon must be properly priced and the polluter must pay. The UK ETS is a flagship decarbonisation instrument, a cap and trade system that sets a declining cap on total emissions and auctions allowances, each representing one tonne of CO² equivalent. Tightening that cap over time sends a clear signal to businesses about what they must reduce and by when.

Emissions trading is, in our view, the most effective way to cut total emissions at the lowest cost. It enables the market to identify and invest in the cheapest abatement options, rather than relying solely on prescriptive regulation, and that reduces carbon leakage. Extending the logic to domestic maritime completes a missing piece in the system that already covers power, heavy industry and aviation. Maritime emissions matter. They are a significant and growing source of CO² emissions. A key barrier to their reduction is that fuel prices do not adequately reflect the environmental costs and therefore reduce incentives for change. Including domestic maritime in the ETS helps to remove the barriers, putting a clear technology-neutral price on emissions from voyages and time spent at berth.

The Government’s impact assessment estimates a central net reduction of around 645,000 tonnes of CO² equivalent, delivering greenhouse gas savings valued on the central estimate of around £155 million and around £179 million in air quality benefits. Overall, the measure has a positive net social value on the Government’s central estimate of £132 million. That is a measurable gain for people and planet. Consultation material suggests that vessels over 5,000 gross tonnes account for two-fifths of domestic maritime emissions. Is the Minister confident that the scope and the threshold align with our overall carbon budgets?

Our climate policy must also be fair. Costs must not fall disproportionately on those who are least able to bear them. The Government’s impact assessment suggests limited consumer impact: typically 1% for most goods and around 2% for some—

[Baroness Butler-Sloss (CB)]

I am grateful to the noble Earl, Lord Russell. Can I ask him two things, from a state of ignorance? First, why is Scotland being omitted and Northern Ireland put in? Secondly, we seem to be dealing with an issue on CBAM that was not referred to in the House of Commons. It seems extraordinary that we should be looking at it from a different perspective from the House of Commons.

[Earl Russell (LD)]

I welcome the noble and learned Baroness’s intervention. The Scotland issue relates to devolved legislation and legislation that Scotland has passed. The issue in relation to the CBAM is in relation to—

[Lord Rogan (UUP)]

Does that not also apply to Northern Ireland?

--- Later in debate ---

[Earl Russell (LD)]

There is a reduction in place in Northern Ireland. There is not specific legislation around that.

[Lord Weir of Ballyholme (DUP)]

The noble Lord gave one of his key considerations as a test of economic fairness. Perhaps he could explain to the House how it is economically fair to have an 100% exemption for Scotland but 50% for Northern Ireland. How is that fair?

[Earl Russell (LD)]

It is not for me to respond to what is a question for the Minister. The Government’s impact assessment estimates central abatement investment of around £22 million, with administrative costs of £179 million over the period. The allowance-purchase cost is largely a transfer to the Exchequer and devolved Administrations, with many operators being non-UK based. Carbon pricing must therefore be matched with a credible transition plan. Without that, this becomes not a nudge for transition but could simply be a tax. However, the Government have announced £448 million for the UK Shipping Office for Reducing Emissions—UK SHORE—between 2026 and 2030, the largest public investment yet in commercial maritime.

Phase 2 will support larger projects through the Clean Maritime Demonstration competition and the Zero Emissions Vessels and Infrastructure competition. That is the industrial policy that must sit alongside carbon pricing. At the same time, the measure is expected, on the Government’s central estimate, to generate around £1.9 billion in allowance-sale revenue: around £95 million a year. Will the Minister confirm that a material share of ETS maritime revenues will be reinvested in maritime decarbonisation, including cleaner vessels, shore power, alternative fuels, and support for local transition in coastal and island communities, rather than simply disappearing? Will the Minister commit to publishing annually how much is raised from maritime ETS and how much is invested in maritime decarbonisation?

The cruise industry is an important and growing part of our economy, calling at some 50 UK ports and making over 2,500 calls a year, supporting tens of thousands of jobs and adding billions to the UK-wide economy. The industry’s concern on ETS is that revenues are not being visibly recycled into cleaner fuels and infrastructure specific to their industry. We only have a handful of onshore connections for cruise liners at the moment, so will the Minister tell us what investment will be made as a result of this scheme to bring shore power, and on what timetable for the cruise industry?

The Government and the UK ETS have done substantial preparatory work, including consultations, a digital monitoring platform and voluntary onboarding since November 2025, ahead of the July 2026 start. The Government’s impact assessment estimates an average administrative cost of around £5,700 per operator per year. This may be modest, but it has real implications for real firms. We recognise that this should reduce over time.

We welcome the formal review at the end of 2028 to assess emissions outcomes, administrative burdens and any needed adjustments to scope or thresholds. We have a number of specific concerns about any plans to expand the scope to international voyages. My noble friend will address the specific issues relating to Northern Ireland aspects. We believe the right approach is to keep these provisions under review and match carbon pricing with practical support, not to abandon maritime decarbonisation. Extending the UK ETS to domestic maritime emissions also helps keep our scheme aligned with greater integration with the EU. In turn, a genuinely linked system will help strengthen our trading relationship.

The fatal and regret Motions both reflect genuine anxieties about costs, competitiveness, and the union, but neither justifies rejecting this order. The suggestion that there is no alternative is not borne out by the evidence. Improved operating practices, routing efficiency and gradual fuel switching all represent viable abatement pathways.

Near-zero emission fuels remain expensive and infrastructure is incomplete. But that is exactly why revenue recycling and UK SHORE matter. The right course is to pair a robust carbon price with predictable investment that keeps the maritime sector on its net-zero path, while keeping the UK economy competitive. To call this measure simply a tax misunderstands how the ETS works. It is designed to minimise the cost of meeting our climate goals, to give business flexibility and to limit carbon leakage: this is a practical measure. It becomes a tax only if the Government pocket the proceeds and fail to reinvest them. Revenue is a byproduct: the purpose is to cap and reduce emissions over time. We are supportive of the extension of emissions trading to domestic maritime. Done well, emissions trading drives real reductions, supports innovation and underpins our net-zero transition.

[Lord Dodds of Duncairn (DUP)]

I am grateful to the Minister for introducing the statutory instrument in the way that he did, to the noble Baroness, Lady Hoey, for introducing her fatal Motion, and to the noble Lord, Lord Moynihan, for introducing the regret Motion. It is very important that we in this Chamber debate these issues: this matter got 47 minutes in the other place. Often, matters that affect Northern Irish consumers and businesses in a very direct and detrimental way do not get any time at all in the other place. It is therefore all the more important that your Lordships have the opportunity to debate these matters.

The noble Baroness, Lady Hoey, and the noble Lord, Lord Moynihan, have powerfully set out what happened in relation to the Northern Ireland Assembly’s consideration of this matter. This Government are supposed to be pro growth; they are supposed to have the cost of living at the heart of their consideration, and indeed they say that they are pro union and are committed to this through various command papers and policy statements. Thank goodness we are not debating the Windsor Framework edifice today, but it always needs to be taken into consideration, because it was certainly a matter for the Secretary of State when he was interacting with party leaders on this particular issue. This statutory instrument runs counter to all these priorities of the Government, yet they proceed with it nevertheless.

The noble Lord, Lord Moynihan, and the noble Baroness, Lady Hoey, referenced the intense lobbying on the part of His Majesty’s Government, at Secretary of State and ministerial level, to parties in Northern Ireland when it became clear that they were deeply concerned about the effects on Northern Ireland. The introduction of the CBAM argument led Ms Finnegan, the Sinn Féin MLA, to say just this week in the Assembly debate:

“While the challenges facing businesses as part of the changes remain, doing nothing is simply not an option. Failure to implement the ETS would result in the costs being incurred through the carbon border adjustment mechanism”.


That proves that this argument changed minds. This was the deciding argument for Sinn Féin. Interestingly enough, it was Sinn Féin, and the SDLP and the Alliance Party, who succumbed to the arguments of the UK Government. It was an interesting turn of events that those parties succumbed to that type of argument. But that is mainly to do with their total allegiance to anything that advances the cause of the EU, even above the interests of their own constituents, as has been evidenced in many debates in the Northern Ireland Assembly.

I also raise the fact that not only was the CBAM argument introduced at a very late stage but, in messages to party leaders, and certainly my party leader, the issue of the SPS agreement and the EU reset negotiations was also raised, and it was explicitly said that this would be put at risk if this SI was not passed by the Northern Ireland Assembly. These are very serious matters. Raising issues such as these as threats and blackmail, at the last minute and without any proper consideration, as the noble Lord, Lord Moynihan, pointed out in the other place, or indeed when the matter first came before the Northern Ireland Assembly, is totally unacceptable.

It is an outrage that these matters should be considered in this way, especially when we consider what is at stake for Northern Ireland, because this is a discriminatory measure. It is a measure that disproportionately affects Northern Ireland, as has been said. I am not going to repeat all the arguments that have been set out on the economic detriment to Northern Ireland—they have been powerfully set out already—but given our dependence upon maritime transport, it is absolutely clear that this is going to have a knock-on, detrimental effect on businesses, on consumers and on every aspect of life in Northern Ireland.