Decarbonising Aviation

Wera Hobhouse Excerpts

Tuesday 21st September 2021 Westminster Hall

[Wera Hobhouse (Bath) (LD)]

It is a pleasure to serve under your chairship, Sir Gary. I congratulate the hon. Member for Putney (Fleur Anderson) on bringing this important debate to this Chamber. We have had a fascinating exchange of ideas this afternoon. I echo everything that has been said so far on long-term technological changes which are exciting and a great opportunity.

In the meantime, we need to look at the demand for flying and how we reduce it, particularly in terms of cost. It is ridiculous that the cost to the environment is not embedded in the cost of flying. It is ridiculous that I can fly for less to almost any destination in Europe that is over 100 miles away, but to get from London to my constituency, which is under 100 miles, costs more by rail. That cannot be right.

The Government have legislated for net zero by 2050. That is too slow for Liberal Democrats. It is clear to us that, in order to stop increasing climate chaos, we need to cut most emissions by 2030. There is no ducking some of the challenging choices we need to make. Farming, shipping and heavy industry are sectors where getting to net zero is a challenge and so is aviation.

The problem is not currently with flying. The problem is with the jet fuel that powers our aircraft. Each aircraft uses an incredible amount of fuel. A jumbo jet carries about 240,000 litres of jet fuel, the equivalent of one-tenth of an Olympic-size swimming pool. It burns through that fuel at a rate of four litres per second. I am aware that an aircraft engineer is in the Chamber today and that my knowledge pales into insignificance compared to his.

We need to do much better on emissions from aviation and we need to do it fast. The good news is that there are alternatives and today I want to make the case for synthetic fuels. Those are made from hydrogen and carbon captured from the air. In theory, this would mean capturing and re-using the carbon dioxide that is already in the air, rather than putting it into the sea bed. The Government favour carbon capture and storage, but what about being more ambitious and making carbon dioxide itself part of the circular economy?

If the UK invests in the right technologies, synthetic fuels can be just that; properly carbon zero and sustainable in the long-term. As I understand it, synthetic fuels are no more and no less than hydrogen combined with carbon dioxide. However, to be fully net zero, the hydrogen used has to be green hydrogen. I echo what my hon. Friend the Member for Richmond Park (Sarah Olney) has already said: it has to be green, not blue hydrogen because green hydrogen is made from renewables and blue hydrogen is made from natural gas, which is a fossil fuel. That means heavy investment in renewables. Currently, the Government say that green hydrogen is too expensive, but I am still waiting for an answer on whether they have made a proper long-term cost analysis between green and blue hydrogen.

As I understand it, synthetic fuels behave in a similar way to conventional kerosene and can be mixed with kerosene. Therefore, aeroplane engines and aircraft design would not need to be significantly changed. The Government already have an existing mechanism in place to make mixing aircraft fuel mandatory via the renewables transfer of fuel obligation. Gradually, we can use kerosene to get to low carbon and carbon zero, if we reach to the point where we mix carbon dioxide with green hydrogen to get synthetic fuels.

I would like the Minister to look at these alternatives. I understand that scientists from the University of Leeds have made that proposal and are in conversation with the Government. If not, I am happy to put him in touch and would love to be part of that conversation because, to me, there seems to be at least a possibility of a solution. Now is the time for the aviation industry to begin to change, and for the Government to ask the aviation industry for their plans on how to get to net zero.

However, as we have heard already this afternoon, changing aircraft fuel is not the only important thing. In the short term, we must also reduce the number of flights. I fully agree with everything that has been said this afternoon. As the hon. Member for Putney mentioned, France has recently banned short-haul internal flights where train alternatives exist. The Liberal Democrats believe that we could replicate this. The UK should ban flights where direct rail transport is available for the same journey, taking up to two and a half hours, unless planes are alternatively fuelled.

There should also be a sustainable alternative to flying, such as rail. We need good transport infrastructure across the country, and it must be affordable for passengers. As has also been mentioned this afternoon, we should reform air passenger duty to target the most frequent fliers. I disagree with the hon. Member for—

[Jim Shannon]

Strangford. I know you are from Bath!

[Wera Hobhouse]

The hon. Member for Strangford (Jim Shannon)—I should know that. We should target the most frequent fliers and introduce VAT on first class and business travel. We must also ensure that there is no net increase in airport runways across the UK. That is the most important issue this afternoon.

I could not agree more with all hon. Members who have spoken in this afternoon’s debate. The aviation industry has been through some difficult times in the past 18 months—I do not deny that—but it has received a lot of Government support along the way. I believe that the aviation industry can become net zero in time. It will be challenging, but it can be done. We need the political will, the Government’s support, and a Government that set out a clear strategy.

--- Later in debate ---

[The Parliamentary Under-Secretary of State for Transport (Robert Courts)]

I will absolutely ensure that I leave that time, Sir Gary. This has been an interesting and well-informed debate. I am grateful to everybody who has contributed and I congratulate the hon. Member for Putney (Fleur Anderson) on securing the debate. We have heard from the hon. Members for Richmond Park (Sarah Olney) and for Angus (Dave Doogan), the right hon. Member for Hayes and Harlington (John McDonnell), the hon. Member for Strangford (Jim Shannon)—who need not worry, because he is an institution and we all know who he is—and the hon. Members for Rutherglen and Hamilton West (Margaret Ferrier) and for Bath (Wera Hobhouse), as well as the Opposition Front Bench speakers.

We all agree that aviation decarbonisation is a critical issue for the UK and, of course, for the entire world, as the hon. Member for Bristol East (Kerry McCarthy) rightly said. Equally, the fight against climate change is one of the greatest and most pressing challenges for the world. However, while it is a challenge, it also presents an opportunity. I echo entirely what the hon. Member for Strangford said. He spoke about the opportunities in North Antrim. He is right, but there are also opportunities all over the UK as we reimagine the way that we fly, as we shift the aviation sector towards a more sustainable flightpath and, ultimately, zero emission flight. The whole country can then look to benefit from that technology, which I will come on to in a minute. I know that the hon. Member for Angus will be particularly interested in that.

[Wera Hobhouse]

Is the Minister looking seriously at progress in the production of synthetic fuels?

[Robert Courts]

I thank the hon. Member, who raises a very good point; I will answer her question when I get to that section of my speech.

I entirely hear the concerns raised by hon. Members, but I feel that the UK Government are leading on this and I want to spend a few moments explaining why that is the case. On our overarching approach, we are confident that by working in partnership with industry, non-governmental organisations, academics and, of course, the public, we can deliver net zero aviation by 2050 through technological solutions and not through restricting the freedom to fly.

I think that the hon. Member for Bath said that the problem is not with flying, but with emissions. I agree with that and I will explain why we will be able to get there. We want to encourage the growth of the sector as it encourages innovative new ways to cut aviation emissions while protecting the benefits of travel, which we probably all agree are cultural, economic and social. It also binds our binds our country together, as I experienced recently when I flew back from Aberdeen.

The Government take this issue seriously and have a strong record on it. We have shown steadfast commitment and are the first major economy to pass laws to end our contribution to climate change by 2050, making us one of the first major economies to legislate a net zero target. We have also set the most ambitious climate change target yet, in the sixth carbon budget, which aims to reduce carbon emissions by 78% compared with 1990 levels, in line with the recommendations of the independent Climate Change Committee. Also in line with those recommendations, the Government have formally included, for the first time, the UK’s share of international aviation and shipping emissions, meaning that those emissions can be accounted for consistently with other sectors.

July was another milestone in our pathway to jet zero as we published the jet zero consultation. I hear what the hon. Member for Paisley and Renfrewshire North (Gavin Newlands) says about consultations, but I think we should be using the extraordinary expertise that we have in the industry. We must get this right and we need to ensure that we are working and moving forward in a collegiate fashion.