The quest for guilt-free flying may have been knocked off course by a broad study that has concluded there is “no clear or single net zero alternative to jet fuel”.
The four most viable alternatives “offer some carbon savings but are not ideal”, according to the review by the Royal Society academy of scientists.
Replacing jet fuel with biomass, for example, would require half the UK’s farmland just to sustain current passenger levels.
But the government is planning for levels to soar by 70% by 2050, representing an additional 200 million passengers.
Switching to sustainable fuel is key to its “jet zero” strategy to turn aviation green, which it touts as a plan to offer “guilt-free flying”.
Flying is responsible for 8% of UK emissions and around 2.4% globally, and also releases other forms of pollution.
The lack of alternatives makes the carbon intensive industry one of the hardest to decarbonise as the world works towards net zero emissions by 2050.
“The requirements for an alternative to jet fuel, to kerosene, is energy density, has to be sufficient to sustain short and long haul flights, it must be produced globally at scale, it must be cost-competitive and it must be implementable by 2050,” said Professor Graham Hutchings, chair of the report’s working group.
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Other options, such as hydrogen, ammonia and synthetic fuels require a massive increase in renewable energy production, or are expensive or require substantial modifications to existing aircraft.
Producing enough green hydrogen – which is created by splitting water molecules into oxygen and hydrogen with renewably generated electricity – would require more than doubling or tripling the UK’s renewable capacity.
A fuel from biomass can be used in the same aircraft engine but there are concerns about its sustainability.
Suitable crops could be rapeseed, fast-growing poplar trees and miscanthus, the Royal Society said.
But because of how much land would be needed to grow them, there has been a growing interest in using biowaste such as used cooking oil.
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The UK is “highly reliant” on importing raw material for biofuel, known as feedstocks, with 423 million litres of used cooking oil imported from China alone in 2021.
Converting waste from the 250 million litres of vegetable oil produced in the UK would produce only 0.3 to 0.6% of the UK’s annual jet fuel needs.
The government wants five “sustainable aviation fuel” (SAF) plants under construction by 2025.
A Department for Transport spokesperson said its SAF programme is “one of the most comprehensive in the world”.
“Our Jet Zero Strategy sets out how we can achieve net zero emissions from UK aviation by 2050, without directly limiting demand for aviation.
“Sustainable Aviation Fuels and hydrogen are key elements of this, and we will ensure that there is no impact on food crops.”
The Royal Society report did not consider battery-powered aircraft as they are “unlikely to have been developed to give the energy density required for most commercial flights in the timescale available to reach net zero by 2050”.
A spokesperson for Airlines UK, the industry’s trade body, said “there is no magic bullet”.
“But by modernising airspace to make flying more efficient, by introducing new zero-emission technology like hydrogen aircraft and by upscaling the use of sustainable aviation fuels this decade, it can be achieved.”
Cait Hewitt, policy director at campaigning group Aviation Environment Federation, said the “elephant in the room” is “the need to fly less”.
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An alleged attack by the Manchester Arena bomb plotter on prison officers at a high-security jail “will stick with” those impacted “for the rest of their lives”, a former officer and colleague of the victims has said.
He was serving his sentence in a separation unit, known as a “jail within a jail”, after being found guilty of 22 counts of murder for helping his brother Salman Abedi carry out a suicide bombing at an Ariana Grande concert in 2017.
The attack has raised fresh questions about the safety of prison staff.
Inmates inside separation units had access to cooking facilities, which has now been suspended.
Image: Abedi was moved back to Belmarsh after the alleged attack
‘It will stick with them for life’
Matthew, who only wants to be referred to by his first name, worked with the officers who were hospitalised following the attack.
“I’ve spoken to ex-colleagues who I’m still friends with,” he told Sky News.
“They’ve not discussed the specifics of the incident, but they’ve said it will stick with them for the rest of their lives.”
Matthew broke down as he described the “obscene” and “ludicrous” levels of violence that staff face inside prison.
He’s worked at a number of different jails.
“I’ve been there when you’re mopping your colleagues’ blood… when you’ve seen a serious assault, and you don’t know if they’re gonna be OK, and then 10 minutes later, you’ve got to get back on with your day, you’ve got to carry on running the regime,” he said.
“It is difficult, and it is awful.”
Image: Matthew worked with the officers who were hospitalised
‘No adequate protection’
There were 10,496 assaults against prison staff in England and Wales in the 12 months to September – a 19% rise on the previous year.
“The reality is there’s no adequate protections for prison staff, and that’s a great frustration,” the general secretary of the Prison Officers’ Association union, Steve Gillan, told Sky News.
Having visited HMP Frankland earlier in the week, and spoken to many of the officers who were involved, Mr Gillan described the mood among colleagues as one of “anger, frustration, and sadness”.
The association, which represents prison officers, is calling for a “reset” – and for staff to be given stab-proof vests and tasers in “certain circumstances”.
Unwary travellers returning from the EU risk having their sandwiches and local delicacies, such as cheese, confiscated as they enter the UK.
The luggage in which they are carrying their goodies may also be seized and destroyed – and if Border Force catch them trying to smuggle meat or dairy products without a declaration, they could face criminal charges.
This may or may not be bureaucratic over-reaction.
It’s certainly just another of the barriers EU and UK authorities are busily throwing up between each other and their citizens – at a time when political leaders keep saying the two sides should be drawing together in the face of Donald Trump’s attacks on European trade and security.
Image: Keir Starmer’s been embarking on a reset with European leaders. Pic: Reuters
The ban on bringing back “cattle, sheep, goat, and pig meat, as well as dairy products, from EU countries into Great Britain for personal use” is meant “to protect the health of British livestock, the security of farmers, and the UK’s food security.”
There are bitter memories of previous outbreaks of foot and mouth disease in this country, in 1967 and 2001.
In 2001, there were more than 2,000 confirmed cases of infection resulting in six million sheep and cattle being destroyed. Footpaths were closed across the nation and the general election had to be delayed.
In the EU this year, there have been five cases confirmed in Slovakia and four in Hungary. There was a single outbreak in Germany in January, though Defra, the UK agriculture department, says that’s “no longer significant”.
Image: Authorities carry disinfectant near a farm in Dunakiliti, Hungary. Pic: Reuters
Better safe than sorry?
None of the cases of infection are in the three most popular countries for UK visitors – Spain, France, and Italy – now joining the ban. Places from which travellers are most likely to bring back a bit of cheese, salami, or chorizo.
Could the government be putting on a show to farmers that it’s on their side at the price of the public’s inconvenience, when its own measures on inheritance tax and failure to match lost EU subsidies are really doing the farming community harm?
Many will say it’s better to be safe than sorry, but the question remains whether the ban is proportionate or even well targeted on likely sources of infection.
Image: No more gourmet chorizo brought back from Spain for you. File pic: iStock
A ‘Brexit benefit’? Don’t be fooled
The EU has already introduced emergency measures to contain the disease where it has been found. Several thousand cattle in Hungary and Slovenia have been vaccinated or destroyed.
The UK’s ability to impose the ban is not “a benefit of Brexit”. Member nations including the UK were perfectly able to ban the movement of animals and animal products during the “mad cow disease” outbreak in the 1990s, much to the annoyance of the British government of the day.
Since leaving the EU, England, Scotland and Wales are no longer under EU veterinary regulation.
Northern Ireland still is because of its open border with the Republic. The latest ban does not cover people coming into Northern Ireland, Jersey, Guernsey, or the Isle of Man.
Rather than introducing further red tape of its own, the British government is supposed to be seeking closer “alignment” with the EU on animal and vegetable trade – SPS or “sanitary and phytosanitary” measures, in the jargon.
Image: A ban on cheese? That’s anything but cracking. Pic: iStock
UK can’t shake ties to EU
The reasons for this are obvious and potentially make or break for food producers in this country.
The EU is the recipient of 67% of UK agri-food exports, even though this has declined by more than 5% since Brexit.
The introduction of full, cumbersome, SPS checks has been delayed five times but are due to come in this October. The government estimates the cost to the industry will be £330m, food producers say it will be more like £2bn.
With Brexit, the UK became a “third country” to the EU, just like the US or China or any other nation. The UK’s ties to the European bloc, however, are much greater.
Half of the UK’s imports come from the EU and 41% of its exports go there. The US is the UK’s single largest national trading partner, but still only accounts for around 17% of trade, in or out.
The difference in the statistics for travellers are even starker – 77% of trips abroad from the UK, for business, leisure or personal reasons, are to EU countries. That is 66.7 million visits a year, compared to 4.5 million or 5% to the US.
And that was in 2023, before Donald Trump and JD Vance’s hostile words and actions put foreign visitors off.
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More bureaucratic botheration
Meanwhile, the UK and the EU are making travel between them more bothersome for their citizens and businesses.
This October, the EU’s much-delayed EES or Entry Exit System is due to come into force. Every foreigner will be required to provide biometric information – including fingerprints and scans – every time they enter or leave the Schengen area.
From October next year, visitors from countries including the UK will have to be authorised in advance by ETIAS, the European Travel and Authorisation System. Applications will cost seven euros and will be valid for three years.
Since the beginning of this month, European visitors to the UK have been subject to similar reciprocal measures. They must apply for an ETA, an Electronic Travel Authorisation. This lasts for two years or until a passport expires and costs £16.
The days of freedom of movement for people, goods, and services between the UK and its neighbours are long gone.
The British economy has lost out and British citizens and businesses suffer from greater bureaucratic botheration.
Nor has immigration into the UK gone down since leaving the EU. The numbers have actually gone up, with people from Commonwealth countries, including India, Pakistan and Nigeria, more than compensating for EU citizens who used to come and go.
Image: Editor’s note: Hands off my focaccia sandwiches with prosciutto! Pic: iStock
Will European reset pay off?
The government is talking loudly about the possible benefits of a trade “deal” with Trump’s America.
Meanwhile, minister Nick Thomas Symonds and the civil servant Mike Ellam are engaged in low-profile negotiations with Europe – which could be of far greater economic and social significance.
The public will have to wait to see what progress is being made at least until the first-ever EU-UK summit, due to take place on 19 May this year.
Hard-pressed British food producers and travellers – not to mention young people shut out of educational opportunities in Europe – can only hope that Sir Keir Starmer considers their interests as positively as he does sucking up to the Trump administration.
A 41-year-old man from Penylan has been charged with murder, preventing lawful and decent burial of a dead body and assaulting a person occasioning them actual bodily harm.
A 48-year-old woman from London has been charged with preventing a lawful and decent burial of a dead body and conspiring to pervert the course of justice.
They both appeared at Cardiff Magistrates’ Court on Saturday.
“This brings our search for Paria to a sad and tragic end,” said Detective Chief Inspector Matt Powell.
“Paria’s family, all those who knew her, and those in her local community, will be deeply saddened and shocked by these latest developments.
“Family liaison officers are continuing to support Paria’s family.”