He also scrapped plans that would have made rental properties more energy efficient.
But with changes still years into the future – and the cost of living crisis rumbling on – will pushing deadlines back make a difference to people’s finances now? Here, Sky News takes a look.
When he was prime minister in 2020, Boris Johnson committed to banning the sale of any new petrol and diesel cars in the UK from 2030. This is now being pushed back until 2035.
Plans to fine manufacturers for each vehicle that doesn’t comply are also being watered down.
Figures show that although petrol and diesel are still the overwhelming majority – the numbers of plug-in and battery electric vehicles on UK roads have increased – by 45% and 58% respectively.
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And in 2023 more electric vehicles were registered than diesel ones for the first time.
This shows a “general trend” away from internal combustion engines (ICE) – and towards more sustainable modes of transport already, says Oliver Montague, chief executive and co-founder of the e-bike engineer company Swytch.
So a change in the timing of the ban is unlikely to have much of an impact.
“Those who have to transition [to EVs] will still have to do so – they just have more time to do it,” he tells Sky News.
“The real shift will be for people who can choose how they want to get around – who aren’t already hooked to one particular mode of transport” – such as a diesel car that needs trading in.
And with the average car journey being only around eight miles – he believes many will opt for e-bikes or cycling, instead of an electric vehicle, meaning the ICE ban will have even less of an impact.
The RAC also notes the ban only covers new petrol and diesel cars, which means “a lot of people won’t be affected as the majority tend to buy used vehicles”.
Mike Childs, head of science, research and policy at Friends of the Earth, adds that people will still be able to buy non-UK manufactured EVs.
“From a consumer perspective it won’t have a great impact because they can just buy Chinese or German EVs,” he tells Sky News.
“But for British manufacturing it’s a huge backwards step and a massive shot in the foot for jobs.”
No gas boilers in new homes
Plans to stop new build properties being fitted with gas boilers beyond 2025 are being pushed back 10 years.
This doesn’t affect people who already have gas boilers, who won’t need to replace them with alternatives such as heat pumps. As a result, this change is more likely to affect developers than consumers.
Image: Domestic heat pump
Jess Ralston, energy analyst at Energy and Climate Intelligence Unit, says that with a greater upfront cost for heat pumps, we won’t know until the changes come in how much of that will be passed on to buyers.
But she adds: “As time goes on heat pumps are going to be cheaper to buy and run anyway.”
Plans for all new heating systems to be low carbon by 2035, including £450m in household grants, has also been scrapped.
This means more people will have gas boilers for longer, which with prices “two to three times’ pre-crisis levels” will mean people paying more in energy bills, Ms Ralston adds.
But on Wednesday Mr Sunak did announce a 50% increase in the boiler upgrade scheme, which offers people £7,500 to help with the costs of switching from a boiler to a heat pump.
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Green Party hits out at Braverman
More energy efficient landlords
In 2020, Boris Johnson also pledged that from 2028 all rental properties would have to have an energy efficient rating of C or higher (A being the best and G the worst). But Mr Sunak is scrapping this due to “cost of living challenges”.
Ms Ralston says she “cannot get a single shred of logic” from the decision.
“This would reduce people’s energy bills in the cost of living crisis and increase energy security – things that the government say they want to be doing. It makes no sense whatsoever.”
Mr Childs says it will disproportionately affect people on lower incomes who are more likely to rent their homes.
“This is a massive kick in the teeth to people who live in cold, damp rented homes that are expensive to heat.
“It’s also a massive handout to landlords who can’t be bothered to insulate their properties properly,” he says.
He adds that despite some drop in prices this year, the cost of oil and gas is increasing again – and will remain volatile for as long as Russia is at war with Ukraine.
“There are more renters than there are landlords, so it makes no sense on votes. It just begs the question of whether the government are being lobbied by wealthy landlords,” Ms Ralston says.
Hydrogen levy
The government was proposing to introduce a levy of around £100 on household energy bills in 2025 – to help pay for low-carbon hydrogen production.
But after many claimed the hydrogen was being used primarily in industry – not people’s homes – ministers have scrapped it.
This is being welcomed by environmental and consumer groups.
Ms Ralston says that heat pumps are far more efficient than hydrogen for heating homes – so the government was right to recognise this wasn’t something the public should pay for.
Mr Childs adds that hydrogen still relies on natural gas – which both homes and transport have been moving away from, so Friends of the Earth has been “against it from the outset”.
The number of people arrested after a protest in London on Saturday supporting banned group Palestine Action has risen to 532, police have said.
Around half of them (259) were aged 60 and above – including almost 100 people who were in their 70s.
Some 522 arrests were for displaying a placard in support of a proscribed organisation contrary to Section 13 of the Terrorism Act 2000, according to the Metropolitan Police.
Membership of, or support for, Palestine Action is a criminal offence punishable by up to 14 years in prison under the Terrorism Act.
Image: A rally supporting Palestine Action in Parliament Square. Pic: Reuters
One of the arrests took place as the Palestine Coalition march formed in Russell Square, while 521 were at the protest in Parliament Square.
Of those arrested, the biggest number (147) was in the 60-69 age group, while 97 people were aged between 70 and 79, and 15 others were between 80-89.
Six were aged 17-19, sixty-five were in the 20-29 age group, 55 were aged 30-39, 45 were aged 40-49 and 89 were in the 50-59 age group.
The average age of those arrested was 54, while some 263 of those arrested were male, 261 were female and eight either defined themselves as non-binary or did not disclose their gender.
Among the arrests, six were for assaults on officers (none were seriously injured), one was for “obstructing a constable in the execution of his/her duty”, two were for breaching Section 14 Public Order Act conditions, and one was for a racially aggravated public order offence.
Image: People attend the protest in central London. Pic: PA
Hundreds of people attended Saturday’s demonstration in Parliament Square, organised by Defend Our Juries, with the Metropolitan Police warning it would arrest anyone expressing support for Palestine Action.
Anyone who was arrested as part of the operation was taken to one of two prisoner processing points in the Westminster area.
Those whose details could be confirmed were released on bail to appear at a police station at a future date. They were given conditions not to attend future demonstrations related to Palestine Action.
Those who refused to provide their details at the prisoner processing points and those who were found to have been arrested while already on bail, were taken to one of a number of Met Police custody suites.
Charity Amnesty International described the mass arrests under UK terrorism law as “deeply concerning”.
The crowd, sat on the grass inside Parliament Square, could be seen writing “I oppose genocide, I support Palestine Action” on white placards at 1pm, with the vast majority remaining silent.
Meanwhile on Sunday, hundreds of people joined a march on Downing Street to urge the release of those being held in Gaza by Palestinian militant group Hamas.
A scuffle broke out after at least two men shouted “Free Palestine” in front of the march.
One man was seen being bundled to the ground close to Trafalgar Square after being surrounded by around a dozen people.
Another man was seen being moved away by police officers after he began shouting.
Four members of a UK family have died in a car crash while they were on holiday in Portugal.
Domingos Serrano, 55, Maria Serrano, 51, and their twin sons Domingos and Afonso, both 20, died when the car they were travelling in collided with another vehicle in Castro Verde, southern Portugal, according to the Municipal Council for Mourao.
Two others died in the crash – the 19-year-old girlfriend of one of the sons, and the 26-year-old driver of the other car, its statement added.
The Serrano family were living in Thetford, Norwich, but were not British nationals, Sky News understands.
They were travelling from Faro to Mourao for their “usual and deserved vacation”, according to the Mourao authorities, who declared two days of mourning.
In a statement, they said: “In the car there were four occupants, of Mouranese nature, and a young woman with affinity to the family.
“Residents in England, follow from Faro to Mourão, for the usual and deserved vacation.
“It is with great regret that the Municipality announces this information, offering its condolences to the families and friends of the victims.”
Thetford Town Youth Football Club paid tribute to the family in a Facebook post, confirming the twins played for the team.
“Thetford Town Football Club would like to pass on our sincere condolences to the Serrano family and the local Portuguese community after the recent tragedy while on holiday,” it read.
“Afonso and [Domingos] were both an integral part of our U18’s team in recent years, both brothers sadly passed away in Portugal with their parents and friends in a tragic car accident.
“The loss of this lovely family will leave a massive void in the local community.”
Amnesty International says it is “deeply concerning” that police made 474 arrests during a Palestine Action demonstration in London.
Metropolitan Police said 466 were detained under the Terrorism Act for showing support for a banned group.
Eight more people were arrested for other offences, including five for assaulting officers.
The Met said it was the most arrests it’s made related to a single operation in at least the past decade.
Image: Pic: PA
Organiser of the event, Defend Our Juries, earlier said up to 700 people were at the event in Parliament Square and claimed police were preparing for the “largest mass arrest in their history”.
The group said those arrested included former Guantanamo Bay detainee Moazzam Begg, NHS workers, quakers and a blind wheelchair user.
Amnesty International UK’s chief executive Sacha Deshmukh said in a statement: “The protesters in Parliament Square were not inciting violence and it is entirely disproportionate to the point of absurdity to be treating them as terrorists.
“Instead of criminalising peaceful demonstrators, the government should be focusing on taking immediate and unequivocal action to put a stop to Israel’s genocide and ending any risk of UK complicity in it.”
The Met said a “significant number of people” at the event were seen “displaying placards expressing support for Palestine Action”.
Home Secretary Yvette Cooper said: “The right to protest is one we protect fiercely but this is very different from displaying support for this one specific and narrow, proscribed organisation.
“Palestine Action was proscribed based on strong security advice following serious attacks the group has committed, involving violence, significant injuries and extensive criminal damage.”
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Palestine Action supporters arrested at protest
Police said those arrested had been taken to processing points in Westminster and any whose details could be confirmed were bailed on condition they didn’t attend further Palestine Action support events.
Others whose details could not be verified, possibly because they refused to give them, were taken to custody suites across London.
Image: Pic: PA
The protests have put a strain on authorities’ capacity to cope.
Sky News understands senior leaders in the prison service, known as “Capacity Gold”, met today to discuss how to deal with the large number of arrests as the male prison estate is close to full.
It’s understood 800 inmates were moved out of the busiest jails in and around London beforehand.
In a statement, the Metropolitan Police Federation said: “Thinking of our colleagues and wishing all assaulted officers well. Remember there are no ‘extra’ police officers – just the same ones having their days off cancelled, having to work longer shifts and being moved from other areas. Officers are emotionally and physically exhausted.”
‘We felt compelled to speak out’
The first of the arrests began just before 1pm, when a man waving a placard that read “I support Palestine Action” was stopped by police, writes Gurpreet Narwan, reporting from Parliament Square.
Officers told him he was showing support for a terrorist organisation, searched him and ushered him away.
The action soon escalated. Among the people arrested today were a number of elderly people, a blind man in a wheelchair, and a teenager.
They were protesting peacefully, with a number of people pointedly seating themselves below statues of Mahatma Gandhi and the suffragette Millicent Fawcett.
They told Sky News that they were fully expecting to be arrested but that they felt compelled to speak out and defend the right to protest.
One protester said: “I don’t think I’m a criminal. That’s not the person I am.”
However, he said he was being guided by his faith and his conscience.
Things calmed down after a few hours but there was a heavy police presence well into the afternoon and early evening.
Legislation to ban Palestine Action came into force on 5 July, making it a criminal offence to show support for the organisation, carrying a prison sentence of up to 14 years.
Defend Our Juries said earlier this week the protest would still go ahead, following several similar demonstrations since it was outlawed last month.
On Saturday, a spokesperson said: “Palestine Action and people holding cardboard signs present no danger to the public at large.”
Image: Pic: PA
Human rights advocates Amnesty International described the arrests of so many people under UK terrorism law as “deeply concerning”.
Another march organised by the Palestine Coalition, which is a separate group, set off from Russell Square and assembled on Whitehall.
The Met Police said one person had been arrested there for showing a placard in support of Palestine Action.
Image: Pic: Reuters
Earlier this week, three people charged as a result of illegal Palestine Action activity were named.
Jeremy Shippam, 71, of West Sussex, Judit Murray, also 71, of Surrey, and Fiona Maclean, 53, of Hackney in east London, will appear at Westminster Magistrates’ Court on 16 September.
The ban on Palestine Action faces a legal challenge in November after the High Court granted a full judicial review to Palestine Action co-founder Huda Ammori.