Plummeting birth rates mean that without attracting immigration, many countries are sliding towards collapse

I know what “civilisational erasure” looks like: I’ve seen the graph. The European Commission published it in March. It’s a chart of total fertility rate: the average number of children born per woman. After a minor bump over the past 20 years, the EU rate appears to be declining once more, and now stands at 1.38. The UK’s is 1.44. A population’s replacement rate is 2.1. You may or may not see this as a disaster, but the maths doesn’t care what you think. We are gliding, as if by gravitational force, towards the ground.

Civilisational erasure is the term the Trump administration used in its new national security strategy, published last week. It claimed that immigration, among other factors, will result in the destruction of European civilisation. In reality, without immigration there will be no Europe, no civilisation and no one left to argue about it.

George Monbiot is a Guardian columnist

Levels during boarding and taxiing were far above those defined as high by the World Health Organization

A study has revealed the concentrations of ultrafine particles breathed in by airline passengers.

A team of French researchers, including those from Université Paris Cité, built a pack of instruments that was flown alongside passengers from Paris Charles de Gaulle to European destinations. The machinery was placed on an empty seat in the front rows or in the galley.

Mismatched or holey socks won’t cut it if your host asks you to leave your footwear at the door this party season

Court heard Alicia Kemp, 25, from Redditch, Worcestershire was over the blood alcohol limit when she drove into Thanh Phan, 51, in Perth

A British backpacker has been sentenced to four years in prison after a fatal collision with a father-of-two while riding an electric scooter in Australia.

Alicia Kemp, 25, from Redditch, Worcestershire, appeared at Perth district court in Western Australia on Friday where she was sentenced after pleading guilty to dangerous driving causing death while under the influence of alcohol.

For her directorial debut, Winslet assembled a cast including Toni Collette, Timothy Spall, Johnny Flynn and Andrea Riseborough to tell a story inspired by her own family’s bereavement. The actors talk mourning, immortality and hospital vending machines

In 2017, Sally Bridges-Winslet died of cancer. She was 71. It was, her youngest daughter said, “like the north star just dropped out of the sky”.

It would have been even worse, says Kate Winslet today, had the family not pulled together. “I do have tremendous amounts of peace and acceptance around what happened because of how we were able to make it for her.”

A passenger having a mental health episode was heading for the emergency exit. He lunged for the door handle, screaming

I write thrillers: mostly ­historical mysteries. In September 2024, I was returning from a ­literary festival in Italy, where I had been talking about my ­latest book. It was a Ryanair flight, and as we came in to land at London Stansted, I heard people behind me shouting. I looked back to see some of them were standing up. A moment later a big man – I would guess he was 6ft 4in, and powerfully built – burst through them. He headed towards an emergency exit and lunged for the door handle, screaming. Behind him, a smaller guy was clambering over the tops of the seats, shouting: “It’s not terrorism. It’s not terrorism. Mental health!”

While exit doors can’t be opened when a plane is at full altitude because the air pressure inside is too great, levels dip during descent, and it is possible to open them. I feared that if he opened the exit, the plane would be hard to control and we might hit the ground about 300mph faster than we were meant to.

Exclusive: John Fingleton says regulators need to change their attitude to risk to end the country’s economic stagnation

Overbearing health and safety rules are stopping Britain building new infrastructure, according to the economist whom Keir Starmer has cited as an inspiration for his growth strategy.

John Fingleton, who recently wrote a report for government on how to encourage developers to build new nuclear power plants, told the Guardian regulators needed to change their attitude to risk if the country was to end its long economic stagnation.

Proposals to change US citizenship rules leaves dual citizens like me caught in the crossfire. If push comes to shove, I know where my loyalty lies

I love many things about the land of my birth but Donald Trump’s America has become an unwelcoming country of deep divisions and waning trust

I’m in the US right now, but if I didn’t have family here (and a US passport), I wouldn’t be. My teenagers and I flew over the week of Thanksgiving from Australia, preparing ourselves for long lines and extra questions at customs. It took less than five minutes in the US citizens’ line.

With the news this week of the Trump administration planning to implement new invasive requirements for travellers from 42 countries, including Australia, that would require five years of social media history for visas, I would simply not travel here on another passport. There are plenty of places which welcome visitors without trawling their political opinions and family history.

An all-new Croft adventure, Tomb Raider Catalyst, will be released in 2027 – and a remake of the action heroine’s first adventure arrives next year

After a long break for Lara Croft, a couple of fresh Tomb Raider adventures are on their way. They will be the first new games in the series since 2018, and both will be published by Amazon.

Announced at the Game Awards in LA, Tomb Raider Catalyst stars the “charismatic, self-assured, formidable Lara Croft” from the original 1990s games, says game director Will Kerslake. It’s set in the markets, mountains, and naturally the ancient buildings of northern India, where Lara is racing with other treasure hunters to track down potentially cataclysmic artefacts. It will be out in 2027.

Conflict monitors say the junta has increased airstrikes year-on-year since the start of Myanmar’s civil war

Dozens have been killed in a military strike on a hospital in Myanmar’s western Rakhine state, according to an aid worker, a rebel group, a witness and local media reports, as the junta wages a withering offensive ahead of elections beginning this month.

“The situation is very terrible,” said on-site aid worker Wai Hun Aung. “As for now, we can confirm there are 31 deaths and we think there will be more deaths. Also there are 68 wounded and will be more and more.”

Scientists say bears in southern Greenland differ genetically to those in the north, suggesting they could adjust

Changes in polar bear DNA that could help the animals adapt to warmer climates have been detected by researchers, in a study thought to be the first time a statistically significant link has been found between rising temperatures and changing DNA in a wild mammal species.

Climate breakdown is threatening the survival of polar bears. Two-thirds of them are expected to have disappeared by 2050 as their icy habitat melts and the weather becomes hotter.

Move follows a disagreement with the largest grouping in parliament, with elections to be held within 45-60 days

Thailand’s prime minister, Anutin Charnvirakul, announced on Thursday that he is “returning power to the people”, moving to dissolve parliament and clear the way for elections earlier than previously anticipated.

Government spokesperson Siripong Angkasakulkiat said the move followed a disagreement with the largest grouping in parliament, the opposition People’s party. “This happened because we can’t go forward in parliament,” he told Reuters.

Papua New Guinea has one of the fastest growing HIV epidemics in the Asia-Pacific region, with many unaware they have the virus

After battling illness for years, Nancy Karipa tested positive for HIV in 1999. She had just given birth to her first child. “It was a crossroads moment for me, with the fear of denial, but I chose action,” Karipa, who is now in her 50s, said at an Aids awareness event in Papua New Guinea’s capital Port Moresby in December. She and the baby received treatment, and her child remains healthy.

Karipa, from East Sepik in northern PNG, is unusual in sharing her story. The stigma around the disease is high in the Pacific nation, but speaking out has never been more important. This year PNG declared HIV a “national crisis”.

Order, which lacks the force of law, also creates taskforce whose ‘sole responsibility’ will be challenging states’ AI laws

Donald Trump signed an executive order on Thursday that seeks to halt any laws limiting artificial intelligence and block states from regulating the rapidly emerging technology. The order also creates a federal taskforce that will have the “sole responsibility” of challenging states’ AI laws.

At a signing ceremony, the president touted AI companies’ enthusiasm for wanting to “invest” in the United States and said that “if they had to get 50 different approvals from 50 different states, you could forget it”.

Taken star lends his voice to a film that questions the legitimacy of vaccines and includes interview with RFK Jr

Liam Neeson has lent his voice to a new documentary that questions the legitimacy of vaccines and praises Donald Trump’s health and human services secretary, Robert F Kennedy Jr.

The film, called Plague of Corruption, is narrated by the Taken actor and based on a bestselling book co-authored by Judy Mikovits, a disgraced former scientist who gained notoriety during the Covid pandemic. She claimed Covid was caused by a bad strain of the flu vaccine and urged people not to get vaccinated.

Gabriel Jesus is looking to impress, Daniel Muñoz is tough to replace and is this it for Mohamed Salah at Liverpool?

• Premier League top scorers: the Golden Boot race

This season Chelsea have held Arsenal after going down to 10 men and have beaten Barcelona, Liverpool and Tottenham. They have also dropped points against Atalanta, Brentford, Bournemouth, Brighton, Leeds, Qarabag and Sunderland. It is clear that winning against smaller sides remains a problem for Enzo Maresca. Chelsea rise to the big occasion but inconsistency flares when they are expected to win. They do not like playing against deep defences – Maresca has often reacted with dismay when opponents switch to a back five to counter his carefully formulated plans – and can be forgiven if they are edgy about hosting Everton on Saturday. David Moyes’s side have just recorded clean sheets at Bournemouth and Manchester United. They will back themselves to neutralise Chelsea’s attacking talents. Jacob Steinberg

Chelsea v Everton, Saturday 3pm (all times GMT)

Liverpool v Brighton, Saturday 3pm

Burnley v Fulham, Saturday 5.30pm

Arsenal v Wolves, Saturday 8pm

The PDC world darts championship is back, but could the new £1m winners’ cheque make this show too big?

A team of assistant referees walks into the Twelve Pins in Finsbury Park carrying linesmen’s flags and whistles. It’s 3pm on a Thursday, you think, they’ve probably just been reffing a local game. Then, you think, there isn’t a football pitch around here. And why haven’t they changed and showered? Then more referees walk in, more linesmen, one of them in a comedy wig. And eventually the penny drops.

Yes, “the Darts” is back: an indispensable festive trimming that – much like Christmas itself – always seems to roll around a little sooner every year. Fire up all the old cliches: “the beauty of set play”, “bent the wire”, “pressure the shot”. Wheel John Part out of the attic. Fingers poised on the 180 zoom. You know it’s serious, because it’s two hours before his match and Luke Littler is already on the practice board.

Platform fighting world-leading ban on grounds it contravenes implied freedom of political communication in constitution

• Will Australia’s social media ban survive a high court challenge?

Reddit has filed a challenge against Australia’s under-16s social media ban in the high court, lodging its case two days after implementing age restrictions on its website.

The company said in a Reddit post on Friday that while it agreed with protecting people under 16, the law “has the unfortunate effect of forcing intrusive and potentially insecure verification processes on adults as well as minors, isolating teens from the ability to engage in age-appropriate community experiences”.

Reddit said there was an “illogical patchwork” of platforms included in the ban.

President Nayib Bukele entrusting chatbot known for calling itself ‘MechaHitler’ to create ‘AI-powered’ curricula

Elon Musk is partnering with the government of El Salvador to bring his artificial intelligence company’s chatbot, Grok, to more than 1 million students across the country, according to a Thursday announcement by xAI. Over the next two years, the plan is to “deploy” the chatbot to more than 5,000 public schools in an “AI-powered education program”.

xAI’s Grok is more known for referring to itself as “MechaHitler” and espousing far-right conspiracy theories than it is for public education. Over the past year, the chatbot has spewed various antisemitic content, decried “white genocide” and claimed Donald Trump won the 2020 election.

• Collins discloses stage 4 glioblastoma diagnosis

• Former NBA trailblazer pursuing new therapies

• Symptoms appeared and worsened rapidly

Jason Collins, the former NBA player who became the first openly gay man to play in a major US pro sports league, said Thursday he’s battling “one of the deadliest forms of brain cancer”.

Collins, who revealed in a brief statement in September that he was undergoing treatment for a brain tumor, said in an interview with ESPN’s Ramona Shelburne published Thursday that he has stage 4 glioblastoma.

Roundhouse apologises after animation projected behind band appears to show Star of David entwined with swastika

A music venue in London has apologised after antisemitic imagery was allegedly displayed on stage during a Primal Scream gig.

A video appearing to show the Star of David entwined with a swastika was said to be screened during the Scottish band’s show at the Roundhouse in Camden on Monday.

Measure to redistrict, which would add two GOP-friendly seats, failed 19-31 after 21 Republicans joined 10 Democrats

• Trump news at a glance

Indiana Republicans rejected an effort to redraw the state’s congressional map on Thursday, a stunning and blunt rebuke of Donald Trump and Republican efforts to reconfigure the state’s congressional districts to add two more Republican-friendly seats.

The measure failed 19-31, with 21 Republicans joining 10 Democrats in rejecting the new maps.

The media company is investing $1bn in OpenAI – and allowing its characters to be used in generated videos

Users of OpenAI’s video generation app will soon be able to see their own faces alongside characters from Marvel, Pixar, Star Wars and Disney’s animated films, according to a joint announcement from the startup and Disney on Thursday. Perhaps you, Lightning McQueen and Iron Man are all dancing together in the Mos Eisley Cantina.

Sora is an app made by OpenAI, the firm behind ChatGPT, which allows users to generate videos of up to 20 seconds through short text prompts. The startup previously attempted to steer Sora’s output away from unlicensed copyrighted material, though with little success, which prompted threats of lawsuits by rights holders.