I will hopefully cover that as I go through. It depends which consultation we are talking about. On this issue, the consultation has closed and we will be giving responses shortly. I cannot give precise timescales, but I understand the need for urgency and of course we will move as quickly as we can.
The consultation outlines our approach to reach net zero carbon emissions—or jet zero, as we call it—by 2050, so that we maintain those huge benefits of air travel, and we have clear goals and solutions. There are five policy levers, which are perhaps better understood as three plus two. The first lever is to increase the efficiency of our existing aviation system. I suggest that hon. Members may wish to think about this in terms of timescale: what happens now, what can happen in the shorter term, and what can happen in the medium term.
On the efficiency of our existing aviation system and aircraft, the hon. Member for Angus will realise that, broadly, if we were to see an airliner fly over us today, it might look similar to one from 30 years ago but it would be twice as efficient—to use very approximate figures—because of carbon fibres and engine technology. Those aircraft efficiencies are happening already with the technology that we have. It is not enough, but it is helping.
The hon. Member for Bristol East is quite right to say that airspace can help cut emissions to ensure that fuel is not wasted. If we are more efficient about the way in which aircraft approach airports, that will obviously help. We passed the Air Traffic Management and Unmanned Aircraft Act 2021 in the previous Session. The Civil Aviation Authority is currently reviewing the airspace modernisation strategy and is working to distribute the funds that we gave to further that process. That is the first part: aircraft and airspace.
The second part is about developing ambitious plans for a UK sustainable aviation fuel industry. I will come to that in a bit more detail in a moment. That is not the immediate progress, but the next stage. The third part is about accelerating the development of zero emission flight. That is the sort of thing that we see on the front of the more advanced, new airframe types—the futuristic things that we read about. Those are the first three parts, which go together—that is why I say there are three plus two. The fourth aspect is about developing carbon markets and greenhouse gas removal methods, while is the fifth is about how we influence consumers to make sustainable travel choices, which has been mentioned by a number of hon. Members.
Through the strategy, we will commit the UK aviation sector to reach net zero CO2 emissions by 2050, but we want to go further. We have consulted on a UK domestic aviation target by 2040. We have also consulted on our ambitious proposals to reduce emissions from airport operations, which has been mentioned by a number of hon. Members, and sought views on what additional measures might be required in order to achieve that. As I have said to the hon. Member for Paisley and Renfrewshire North, the consultation has closed and we are considering that at the moment.
I want to update the House on the Jet Zero Council, which is the partnership between industry and senior leaders in aviation, aerospace, and academia that is driving the delivery of new technologies. It also involves the Royal Air Force, which joined recently, and I am very excited and encouraged about. I encourage all hon.
Members to look at the excellent work that the Air Force is doing on net zero, particularly the leading work taking place at RAF Brize Norton in my constituency.