Ultra-processed foods (UPFs) are displacing healthy diets “all over the world” despite growing evidence of the risks they pose and should be sold with tobacco-style warnings, according to the nutritional scientist who first coined the term.

Prof Carlos Monteiro of the University of São Paulo will highlight the increasing danger UPFs present to children and adults at the International Congress on Obesity this week.

“UPFs are increasing their share in and domination of global diets, despite the risk they represent to health in terms of increasing the risk of multiple chronic diseases,” Monteiro told the Guardian ahead of the conference in São Paulo.

“UPFs are displacing healthier, less processed foods all over the world, and also causing a deterioration in diet quality due to their several harmful attributes. Together, these foods are driving the pandemic of obesity and other diet-related chronic diseases, such as diabetes.”

The stark warning comes amid rapidly rising global consumption of UPFs such as cereals, protein bars, fizzy drinks, ready meals and fast food.

In the UK and US, more than half the average diet now consists of ultra-processed food. For some, especially people who are younger, poorer or from disadvantaged areas, a diet comprising as much as 80% UPF is typical.

In February, the world’s largest review of its kind found UPFs were directly linked to 32 harmful effects to health, including a higher risk of heart disease, cancer, type 2 diabetes, adverse mental health and early death.

Monteiro and his colleagues first used the phrase UPF 15 years ago when designing the food classification system “Nova”. This assesses not only nutritional content but also the processes food undergoes before it is consumed.

The system places food and drink into four groups: minimally processed food, processed culinary ingredients, processed food and ultra-processed food.

Monteiro told the Guardian he was now so concerned about the impact UPF was having on human health that studies and reviews were no longer sufficient to warn the public of the health hazards.

“Public health campaigns are needed like those against tobacco to curb the dangers of UPFs,” he told the Guardian in an email. “Such campaigns would include the health dangers of consumption of UPFs.

“Advertisements for UPFs should also be banned or heavily restricted, and front-of-pack warnings should be introduced similar to those used for cigarette packs.”

He will tell delegates: “Sales of UPFs in schools and health facilities should be banned, and there should be heavy taxation of UPFs, with the revenue generated used to subsidise fresh foods.”

Monteiro will tell the conference that food giants marketing UPFs know that, in order to be competitive, their products must be more convenient, more affordable and tastier than freshly prepared meals. “To maximise profits, these UPFs must have lower cost of production and be overconsumed,” he said.

He will also draw parallels between UPF and tobacco companies. “Both tobacco and UPFs cause numerous serious illnesses and premature mortality; both are produced by transnational corporations that invest the enormous profits they obtain with their attractive/addictive products in aggressive marketing strategies, and in lobbying against regulation; and both are pathogenic (dangerous) by design, so reformulation is not a solution.”

However, Dr Hilda Mulrooney, a reader in nutrition and health at London Metropolitan University, said comparing UPF to tobacco was “very simplistic”.

“There is no such thing as a safe cigarette, even second-hand, so banning them is relatively straightforward in that the health case is very clear.

“However, we need a range of nutrients including fat, sugar and salt, and they have multiple functions in foods – structural, shelf-life – not just taste and flavour and hedonic properties.

“It is not as easy to reformulate some classes of foods to reduce them and they are not the same as tobacco because we need food – just not in the quantities most of us are consuming.”

Rishi Sunak and Keir Starmer have clashed over their responses to the Westminster gambling scandal, as it emerged the Metropolitan police is to widen its role in the investigation into bets placed on the general election.

In the last head-to-head debate before voters go to the polls, the Labour leader launched a fierce attack on the culture at the top of the Conservative party, saying it showed the “wrong instinct” to place bets on the future of the country – likening it to the cavalier attitude to Covid rules.

In the angry exchanges, Sunak repeatedly urged the country not to “surrender” to Labour’s plans on tax and migration and said the general election should not be decided purely based on frustration with the Conservatives.

“I understand why you’re frustrated with our party, with me, I get it. But this is not a byelection, it’s a choice with profound consequences for you and our country,” he said. “And before you make that choice, think what a Labour government would mean.

“Can you afford to pay at least £2,000 more in tax?… And if you’re not certain about Labour, don’t surrender to them, don’t vote for any other party, vote Conservative.”

In response, the Labour leader said of the claim that Labour would raise taxes by £2,000 a household: “That is a lie [on tax], he’s been told not to repeat that lie and he’s just done it.”

The UK’s statistics watchdog has previously issued the Conservatives with a warning over the claim, saying they had failed to make clear how the figures were calculated.

Five Conservative politicians and staffers have now been suspended for allegedly betting on the election date. Labour was drawn into the gambling row on Tuesday after being forced to suspend one of his own candidates for betting he would not win the seat he was contesting.

Starmer said he had suspended his candidate, Kevin Craig, “within minutes” – comparing his actions with Sunak, who took days to make the decision. “I think that in the last 14 years politics has become too much about self entitlement, and MPs thinking about what they could get for themselves,” he said.

“The instinct of these people to think the first thing they should do is try to make money, that was the wrong instinct, and we have to change that.”

He said Sunak had “delayed and delayed and delayed” and had been “bullied into” taking action. “My candidates know I have the highest standards. They have seen by my actions the consequences,” he said.

It comes as the Met police confirmed it was investigating a “small number of cases” related to the Westminster gambling row to “assess whether the alleged offending goes beyond Gambling Act offences to include others, such as misconduct in public office”.

A Met police spokesperson said it would announce more on its investigation on Thursday. “The Met is not taking over the investigation into bets on the timing of the General Election. The Gambling Commission will continue to lead the investigation into cases where the alleged offending is limited to breaches of the Gambling Act only,” it said.

The Guardian uncovered the gambling scandal two weeks ago, revealing that Craig Williams was the subject of an investigation by the watchdog for betting that the election would be in July, three days before it was called.

The watchdog is also examining bets allegedly placed by Tony Lee, the Conservative party’s campaigns director and his wife, Laura Saunders, the Tory candidate in Bristol North West, as well as Nick Mason, the Tories’ chief data officer.

The Guardian also revealed that Russell George, a Tory member of the Welsh parliament who represents the same constituency as Craig Williams, is part of the commission’s inquiry.

Six of the Met’s own officers have been caught up in the scandal so far, with one, a protection officer for the prime minister, under investigation for misconduct in public office having allegedly placed five bets on the election date.

Labour suspended the Central Suffolk and North Ipswich candidate Kevin Craig and said it would now return £100,000 he had donated to the party under Starmer’s leadership, while the shadow health secretary, Wes Streeting, would give back £13,000 donated for staffing costs.

in the second and final debate between the two leaders, hosted by the BBC, they clashed over the economy, immigration and their prime ministerial qualities. Loud protests were heard from outside the building in Nottingham during the exchanges.

Starmer said Sunak would be “Liz Truss Mark II” and that the same damage would follow. “He’s now openly admitted the damage that the Conservatives have done to this country and then is now saying – vote for me.”

He also drew applause from the audience for challenging Sunak on the cost of living, saying: “If you listened to people across the country more often you might not be so much out of touch.”

Starmer accused Sunak of using trans people as “a political football to divide people”, though both said they would protect women’s rights to single sex spaces.

The Labour leader drew whoops of applause when he said that he believed trans people should be treated with “dignity and respect … if you don’t, we end up with the prime minister of the United Kingdom standing in parliament making an anti-trans joke in front of the mother of a murdered trans teenager.”

Sunak replied: “That’s not what I did. I was pointing out that you’ve changed your mind on this question multiple times.”

But Sunak landed blows on Starmer earlier in the debate by questioning his plans on illegal migration, saying his plans for return agreements for migrants were “nonsensical” when it came to countries such as Iran and Afghanistan.

“He says he’s going to sit down with people. Are you going to sit down with the Iranian ayatollahs? Are you going to do a deal with the Taliban? It’s completely nonsensical what you are saying. You are taking people for fools,” Sunak said.

The Labour leader said that Sunak’s plan to deport people to Rwanda was also not having any deterrent effect.

“At the moment they are not being processed … there are tens of thousands of people sitting in hotels and you haven’t processed their claims. At the moment 100% of them are effectively being granted asylum … and because they aren’t being processed, they can’t be returned to where they come from,” he said.

The prime minister said that Starmer also had no plan for how he would deal with those asylum seekers currently in limbo. “If Keir Starmer becomes prime minister, all those illegal migrants will be out our streets, and that is a choice for you,” he said.

“Do not surrender to the Labour party the control of our borders. If Labour wins, the people smugglers are going to need a bigger boat.”

So, this was the night Georgia advanced to the last 16 in their first appearance at a major tournament courtesy of a magnificent victory over Portugal and one that will live long in the memory of the thousands of supporters who were here to witness history. No wonder Khvicha Kvaratskhelia, who got the nation dreaming after scoring inside 92 seconds and afterwards swapped shirts with his childhood hero Cristiano Ronaldo, pined to see the scenes in Tbilisi.

There will be a rich tapestry of lasting images from this win but the sight of Georgia’s substitutes’ bench emptying, reserve goalkeepers Giorgi Loria and Luka Gugeshashvili, too, streaming to mob Georges Mikautadze after his penalty earned a two-goal buffer is hard to top. Guram Kashia looked to the skies, kissed his wrist and beat his chest. Willy Sagnol, wearing a plain white T-shirt, merely clenched his left fist. It is fair to say the celebrations back home will be rather more unrestrained. “This is the best day in the lives of Georgians,” Kvaratskhelia said. “We just made history. Nobody believed we would defeat Portugal but this is why we’re a strong team. We just encourage each other and said that we could do it. Even if there is just a 1% chance, we proved that you can make it happen.”

On the basis of the 68-place gulf between them in the Fifa rankings alone, it felt a big ask. Where to start with arguably the greatest underdog story at a European Championship since Wales went deep into the tournament at Euro 2016 or Iceland knocked out England the same summer. It would be easy to linger on the petulance of Ronaldo, who booted a water bottle down the touchline in anger after being withdrawn midway through the second half. But then that would be to ignore the endearing brilliance of this Georgia team; the way they commemorate blocks like victories, the dancing feet of Kvaratskhelia, the brute strength of Kashia, a warrior and a leader. It is not Ronaldo but Mikautadze who is leading the way for the golden boot in Germany. Ronaldo is yet to get off the mark for a Portugal side who will play Slovenia in the last 16. It is the first time in his career Ronaldo has failed to score in the group stage of a major tournament.

Georgia had to win to avoid elimination while Portugal came into the game with a place in the last 16 already boxed off. Roberto Martínez changed nine of his 10 outfield players, Ronaldo the only survivor from their impressive win over Turkey. Diogo Costa remained in goal and with 92 seconds on the clock it was the Portugal goalkeeper who was fishing the ball out of his net.

Martínez conceded his team struggled to cope with Georgia’s intensity and hunger. At the end of the first half Portugal had recorded twice as many touches and 11 shots compared to their opponents’ three. But there was only one that mattered, Kvaratskhelia drilling the ball across Costa and into the far corner to register his first goal at a major tournament. It is a goal that will be replayed for years to come in Georgia but one the right-back António Silva will not want to see in a hurry. Silva played a careless backward pass towards halfway and the moment Mikautadze seized possession, the first time they had done so in the opposition half, he ran towards a wall of noise from the Georgia supporters staring back at him. Mikautadze spied Kvaratskhelia to his left and played the perfect pass, allowing his teammate to do the rest.

A brave and disciplined Georgia were intent on upsetting Portugal. Kashia nicked the ball from Ronaldo to huge cheers and soon afterwards Georgia dispossessed João Félix before playing their own neat triangles. Any time the ball was within a five-metre radius of Kvaratskhelia the noise was deafening from the Georgia supporters. Ronaldo was booked for dissent after airing his anger at the Swiss referee, Sandro Schäfer, for failing to penalise the Georgia defender Luka Lochoshvili for getting touch-tight. He fumed as Pedro Neto was booked for diving on the verge of half-time. He saw a shot superbly blocked by Giorgi Gvelesiani and another by Lasha Dvali early in the second half. No matter how much they believed, Georgia probably never envisaged the sight of Ronaldo playing ballboy in a bid to restart the action and fashion an equaliser.

Diogo Dalot forced a phenomenal left-hand save from Giorgi Marmardashvili, again superb in the Georgia goal, but then the referee pressed pause as the VAR reviewed Lochoshvili’s fall inside the box at the start of the phase of play. The referee headed to the pitchside VAR monitor and then pointed to the penalty spot, confirming Silva, who was later withdrawn alongside Ronaldo, swiped at the midfielder. Mikautadze sidefooted his spot-kick into the corner and while Costa went the right way, neither he nor Portugal were a match for Georgia.

Progressive groups reacted with disappointment and anger over Jamaal Bowman’s decisive primary loss to a moderate Democrat in New York’s 16th district, calling for the party to cut ties with pro-Israel lobbying groups they blame for the result.

In a letter to the House Democratic leader, Hakeem Jeffries, more than a dozen progressive organizations said they had “dire concerns” over the party’s continued association with the American Israel Public Affairs Committee (Aipac), “the future of the Democratic Party, the future of our multiracial democracy, and the future of our planet”.

Aipac and its affiliates plan to spend $100m across the election cycle, and Bowman’s defeat marks their most significant victory to date. Looking ahead, they have already set their sights set on the Missouri congresswoman Cori Bush, who will face Wesley Bell in her August primary. United Democracy Project, a Super Pac affiliated with Aipac, has already spent nearly $1.9m promoting Bell’s candidacy.

The signatories of the letter included the Center for Popular Democracy Action, Jewish Voice for Peace Action, New York Communities for Change and New York City Democratic Socialists of America.

In the letter, they said that in the run-up to the vote, UDP had flooded the Westchester county–northern Bronx district with nearly $20m in mailers and ads “funded largely by Republican billionaires, to drown out Jamaal Bowman’s message of humanity, dignity, and a thriving future for all”.

The result, they said, had been to unseat a a candidate that Jeffries had personally endorsed, who retains “a deep well of support among the Black and brown communities in the district”, and to replace him with “a conservative politician with a history of racist remarks and governance”.

Bowman, a Black former middle school principal who has been an outspoken critic of Israel’s conduct in Gaza, lost to challenger George Latimer by a wide margin of 58% to 42% of the vote. The race was called within an hour of polls closing.

Bowman had been supported on the campaign trail by heavyweight party progressives, including Alexandria Ocasio-Cortez and the Vermont senator Bernie Sanders, who called the race “one of the most important in the modern history of America”.

Sanders said in a statement after Bowman’s loss that it was “an outrage and an insult to democracy that we maintain a corrupt campaign finance system which allows billionaire-funded Super Pacs to buy elections.”

“Aipac and other Super Pacs spent over $23 million to defeat Bowman. He spent $3 million. That is a spending gap which is virtually impossible to overcome,” he said, adding: “It is not a coincidence that with our corrupt campaign finance system we also have a rigged economy that allows the very rich to get much richer while many working people are falling further behind. Big Money buys politicians who will do their bidding, and the results are clear.”

Progressives, like Sanders, attempted to characterize the race as an example of big-money influence in politics after pro-Israel groups and a number of wealthy residents of the New York suburban parts of the district weighed in with their checkbooks.

Bush underscored that Latimer’s victory represented a clear threat to the progressive movement, saying in a statement: “These same extremists are coming to St Louis. They are bankrolling a faux-progressive, former Republican campaign operative to buy our deep blue Democratic seat. But let me be clear: St Louis will not be silenced or sold out.”

The progressive groups said that Aipac had “turned the NY16 race into the most expensive Democratic primary in history, waging an unacceptable assault on our democracy, our communities, and our shared future” and called on Jeffries to take action against “destructive actions in your own backyard”.

Jeffries, along with most of the House Democratic leadership team, has received Aipac’s endorsement, and the progressive groups demanded that he reject the pro-Israel lobby group’s financial support to protest against Bowman’s defeat.

Protect Our Power said in a statement that Bowman’s defeat was a “loss for young people and anyone who cares about our continued movement toward justice, peace, and building a multiracial democracy”.

The progressive group blamed “Aipac and the Maga billionaires who recruited and paid for George Latimer’s campaign from start to finish” for the defeat, and vowed “to tell Aipac they have no business creating division in our democracy”.

In a separate letter of protest, Jewish Voice for Peace Action said it was “saddened” by the results that had unseated a congressman who “has been one of the few members of Congress committed to defending Palestinian human rights”.

“Today is a sad day for American democracy,” said JVP’s political director, Beth Miller. “To protect progressive candidates moving forward it is essential that Democrats reject Aipac,” she added.

Bob Herbst, a member of the group and a constituent of NY-16, called Aipac’s multimillion-dollar spend in the district “a dangerous interference in our democracy”.

The race had been viewed as a crucial test of Democratic party unity over an issue that threatens to separate traditionally Democratic-voting Jewish Americans from the party in the aftermath of Hamas’s 7 October attack on Israel that killed nearly 1,200 people, and a nine-month Israeli counter-offensive that has killed more than 37,000 Palestinians and driven hundreds of thousands more to the point of starvation.

Bowman claimed that the results would show “fucking Aipac the power of the motherfucking South Bronx”, though the Aipac campaign focused primarily on Bowman’s weaknesses overall and not specifically or solely his stance on Israel. One UDP attack ad against Bowman specifically called out his votes against the bipartisan infrastructure bill and the debt ceiling agreement, accusing the representative of failing his constituents.

“Jamaal Bowman has his own agenda and refuses to compromise, even with President Biden,” the ad’s narrator says. “Jamaal Bowman has his own agenda, and it’s hurting New York.”

Nonetheless, Aipac is using Latimer’s victory to claim that Bowman’s stance on Israel is why he lost.

“This race presented a clear choice – between George Latimer, who reflects the views of the Democratic mainstream in his congressional district and across the country, and his opponent, who aligns with the extremist, anti-Israel fringe,” an Aipac spokesperson, Marshall Wittmann, told Axios.

Bowman was no stranger to scandals while in office. In December 2023, he became the 27th House member in history to be censured after pulling a fire alarm on his way to vote on a stopgap spending bill. He was also linked to problematic blogposts that pushed unfounded conspiracy theories about the September 11, 2001, terrorist attacks. The posts, which Bowman said were from more than a decade ago, were unearthed by the Daily Beast earlier this year and the former representative has since said he regrets them.

Bowman’s opponent, Latimer, offered a more measured approach in a district with a large number of Jewish voters.

After Latimer accepted his win on Tuesday night, he told supporters: “We have to fight to make sure that we do not vilify each other, that we remember that we’re all Americans, and that our common future is bound together.”

Joanie Greve contributed reporting

Paris Hilton, the American socialite and media figure, has told a congressional panel looking into strengthening child welfare protections that she was “force-fed medications and sexually abused by staff” while she was institutionalized as a teenager.

Hilton, an outspoken advocate for better protections for children in youth facilities, told the House committee on ways and means on Wednesday that she had been “violently restrained and dragged down hallways, stripped naked and thrown into solitary confinement”.

The 43-year-old has previously described how she was subjected to “a parent-approved kidnapping” at four different youth facilities as her parents searched for solutions to her rebellious behavior and “fell for the misleading marketing of the troubled teen industry”.

She has characterized the “tough love” teen course-correction business as a $50bn industry that includes therapeutic boarding schools, military-style boot camps, juvenile justice facilities and behavior-modification programs.

On Wednesday, the reality TV star said she found her institutional experience “isolating and traumatic” and that she had been prevented from alerting her parents to what was happening because phone calls were monitored.

“It’s really difficult to tell anyone in the outside world. A lot of these kids are not believed because these places tell the parents they’re being lied to and manipulated because they want to go home,” Hilton told the panel.

Hilton has also called on lawmakers to pass the Stop Institutional Child Abuse act, designed to strengthen oversight of residential youth programs; supports the re-authorization of Title IV-B of the social security act; and is an advocate for a “Bill of Rights” for children in youth facilities.

The Provo Canyon school, one of the institutions Hilton attended, previously responded to Hilton’s accusations saying it was under different management and “therefore cannot comment on the operations or student experience prior to that time”.

“What we can say is that the school provides a structured environment, teaching life skills, providing behavioral health therapy, and continuing education for youth who come to us with pre-existing and complex emotional, behavioral and psychiatric needs,” the school said.

At the hearings, Hilton said “these programs promised healing, growth and support, but instead, did not allow me to speak, move freely or even look out a window for two years”, and said her parents had been “completely deceived” about the therapeutic treatment she was receiving.

Companies have spent decades obstructing efforts to take on the plastics crisis and may have breached a host of US laws, a new report argues.

The research from the Center for International Environmental Law (CIEL) details the widespread burdens that plastic pollution places on US cities and states, and argues that plastic producers may be breaking public-nuisance, product-liability and consumer-protection laws.

It comes as cities such as Baltimore have begun to file claims against plastic manufacturers, but the authors write that existing cases “are likely only the beginning, as more states and municipalities grapple with the challenges of accumulating plastic waste and microplastics contamination.”

Taxpayers foot the bill to clean plastic pollution from streets and waterways, and research shows people could ingest the equivalent of one credit card’s worth of plastic per week.

“We’re in the midst of a population-scale human experiment on the impacts of multigenerational toxic exposures,” said Carroll Muffett, president of CIEL and a report co-author. “Plastics are at the epicenter of that.”

Drawing on newly revealed internal documents and previous investigations, the authors write that producers knew of these risks and produced and marketed plastics anyway.

Petrochemical producers such as ExxonMobil Chemical and Shell Polymers, and disposable plastic goods producers like Coca-Cola, PepsiCo and Unilever, should be held responsible, they say.

Global plastics production exploded shortly after the second world war, when “an industry that had been producing plastics primarily for military purposes needed new markets”, said Muffett.

From 1950 to 2000, global plastic production soared from 2m tons to 234m tons annually. And over the next 20 years, production more than doubled to 460m tons in 2019, the authors write, citing data from the Organisation for Economic Co-operation and Development (OECD). But plastics producers knew in the 1950s that their products don’t break down and in 1969, documents show, industry interests discussed plastics accumulating in the environment but kept marketing them.

As the public grew concerned about plastic pollution, the industry responded with “sophisticated marketing campaigns” to shift blame from producers to consumers – for instance, by popularizing the term litterbug.

In the 1980s, the industry “misled the public” by lobbying states to adopt a plastic-packaging numbering system that resembled the “chasing arrows” recycling symbol and therefore appeared to indicate recyclability. (The Federal Trade Commission is currently re-evaluating the use of the symbols.)

Around that same time, some municipalities began attempting to curb plastic pollution.

Coordinated pushback

In 1989, Massachusetts considered banning all single-use packaging. The ballot initiative, proposed by the Massachusetts Public Interest Research Group, “had teeth to ensure compliance” including potential fines, jail time and the possibility of civil-enforcement actions.

The ban was set to appear on the 1990 ballot, but the industry devised a “highly coordinated and sophisticated campaign” to kill it, the authors write based on internal documents.

“Despite being local in its scope, the Massachusetts ban represented a serious threat to plastics producers and a host of other industry interests,” the report says.

Tobacco lawyers, whose industry had come under fire for littered plastic cigarette butts, lobbied the Massachusetts attorney general to shut down the measure. And consumer goods producers like Procter & Gamble, petrochemical trade groups like the Chemical Manufacturers Association (which later became the American Chemistry Council), and tobacco lobby group the Tobacco Institute, created a taskforce to direct opposition.

The Council for Solid Waste Solutions (CSWS), an industry group funded by major petrochemical producers such as Exxon, Dow, DuPont and Chevron, hired consultants to develop a plan for opposing legislative bans.

CSWS also facilitated the creation of a “front group”, which purported to represent local business interests. And it lobbied state lawmakers to water down the measure, promoting recycling instead of packaging bans.

Another strategy: pitting environmentalists and organized labor against one another. CSWS recruited members of the Massachusetts AFL-CIO to oppose the measure at hearings. Soon after, the labor organization passed a resolution opposing the ban. (The Tobacco Institute took credit for the success of the “labor resolution process”, writing in a document: “Labor and consumer groups are natural allies to environmental organizations; however, efforts are underway to diffuse such alliances on this issue.”)

CSWS also sued to invalidate the measure on a technicality, arguing that because the petition’s signatures and text did not appear on the same page, the signatories may not have reviewed the proposal. This was ultimately successful on appeal; within months, the ballot initiative was dead.

The industry also successfully fended off a similar ballot initiative in Oregon, the report says. And politicians in Oregon, California and Wisconsin introduced a bill drafted by the rightwing thinktank American Legislative Exchange Council promoting recycling over packaging bans.

Plastic interests appear to be using similar tactics today. Using Facebook’s advertising database, the researchers found that the petrochemical trade group the American Chemistry Council had run $10m worth of seemingly local ads in US states in recent years encouraging people to contact local officials to oppose anti-plastic measures and support for so-called advanced recycling, which breaks plastic polymers down but is energy-intensive and creates pollution.

Ross Eisenberg, president of America’s Plastic Makers, part of American Chemistry Council, called the research a “misdirected distraction” from the resources the industry is putting into preventing pollution, and said it ignored “the environmental benefits of plastics,” citing a McKinsey study that environmentalists have contested.

Legal theories

The effects of this deception and plastic pollution are widespread, the report argues. Plastic has clogged sewer grates, leading to increased flooding, while also forcing municipalities to invest in expensive skimmers to remove materials from waterways. It has also exposed populations to microplastics, which studies show are pervasive and which researchers believe to be harmful.

The report outlines different legal theories that could help governments pursue accountability for these harms. Nuisance could account for the harms themselves, products liability could put companies on the hook for damage caused by poor design, and consumer-protection law could be used to combat deceitful marketing practices.

Existing lawsuits have made use of these theories. Baltimore sued six plastic companies this month and filed a similar suit against cigarette manufacturers for littered plastic cigarette filters. New York in 2023 also filed a case against PepsiCo. But the damages are more widespread than these suits indicate, the authors say.

Other attempts at accountability are under way. In California, a two-year-old investigation by the attorney general, Rob Bonta, into the plastics industry and its communication about recycling could potentially result in a case against oil interests.

A February report from the Center for Climate Integrity (CCI) found that companies knew for decades that plastic recycling is not feasible, but promoted it anyway. Both reports add to a “growing body of evidence” showing the plastics crisis was “created and perpetuated by a decades-long campaign of deception”, said Alyssa Johl, CCI vice-president.

Brian Frosh, former attorney general for Maryland, who reviewed both reports, said if currently an attorney general, he would be actively pursuing legal action.

“This is a crisis that’s been imposed on the public, and one that needs redress,” he said.

Farmers in Denmark will have to pay for planet-heating pollutants that their cattle expel as gas, after the government agreed to set the world’s first emissions tax on agriculture.

The agreement – reached on Monday night after months of fraught negotiations between farmers, industry, politicians and environmental groups – will introduce an effective tax of 120 kroner (£14) per ton of greenhouse gas pollution from livestock in 2030, which will rise to 300 kroner per ton in 2035.

The revenues are to be pooled in a fund to support the livestock industry’s green transition for at least two years after the tax comes into effect.

“We are writing a new chapter in Danish agricultural history,” said the farming minister, Jacob Jensen.

Agriculture is responsible for about one-third of planet-heating pollution – about half of which comes from animals – but lawmakers have so far been reluctant to rein in its emissions. Angry farmers have brought traffic to a standstill in European capitals several times this year, in sometimes violent protests that forced EU leaders to water down rules designed to clean up the sector.

Last week, New Zealand scrapped its world-leading plans to tax its agricultural emissions from 2025 after resistance from farmers.

Nicolai Wammen, Denmark’s finance minister, said the agreement was an investment in the future of agriculture. “We know that a CO₂ tax model aligned across all sectors gives us the lowest societal costs in total. What we have now done, from industry sectors to agriculture, shows us that an ambitious green transition is possible.”

Denmark is one of Europe’s biggest producers of pork and a significant producer of beef and milk.

Ruminant animals such as cattle and sheep release vast amounts of methane when digesting food. The gas, which is also released when extracting and processing fossil fuels, heats the planet about 80 times more than carbon dioxide over a 20-year period, but does not last as long in the atmosphere.

The proposed Danish tax on agricultural emissions is below levels that experts say would reflect the social cost of emitting a ton of greenhouse gas, but may still spur shifts to cleaner farming practices. Under the EU’s emissions trading scheme, which does not cover agriculture, the price of emitting a ton of carbon dioxide has ranged from €50 to €100 over the last three years.

Prof Mark Howden, director of the Institute for Climate, Energy and Disaster Solutions at the Australian National University, said “the world can no longer afford to ignore” emissions from the agri-food sector. “The solutions needed to make a significant cut in agriculture’s climate footprint already exist – but financial incentives like the Danish tax could assist them being implemented at scale,” he said.

The agreement, which must still be voted on by lawmakers, is expected to cut CO₂ emissions by 1.8m tons in 2030. It includes the creation of a 40bn-kroner fund to protect nature, restore degraded ecosystems and create forests and wetlands.

“This is a historic compromise that sets a completely new direction for land use,” said Maria Reumert Gjerding, president of the Danish Society for Nature Conservation. “Despite major disagreements, we have managed to reach a compromise on a carbon tax that paves the way for a transformed food industry – also beyond 2030.”

The naturalist

Steve Backshall – Sandaig Bay, Scotland

“Sandaig Bay on the Knoydart Peninusla is incredibly wild. It can only be accessed by a kayak or by walking about 5km [three miles] and was immortalised in Ring of Bright Water by Gavin Maxwell, who spent time there with his pet otters. I’ve camped there and had it completely to myself.

It has remarkable white-yellow sands, leading down to some of the clearest and coldest seas that you’ll find in the nation. You look across the straits out to the Cuillins on Skye and behind you, you’ve got the towering peaks of Knoydart – gargantuan mountains that drop straight down to the loch.

I like walking along the strandline, picking up old driftwood to carefully make a wildfire later, or collecting mussels and brown seaweed for a freshly foraged meal. You can even fish for mackerel or pollack, or free dive for scallops.

The loch itself is utter paradise. Even in stormy weather, the waters are glassy, flat and peaceful. Porpoises, dolphins and otters pop up alongside your kayak – the closest and best otter experience I’ve ever had in this country was on those black, calm waters. And a short paddle away is the Old Forge at Inverie, the best pub in the world, where I’ve had some of the best nights of my life. You can only get to it by sailing, paddling or walking.

Afterwards, I’ll sit around a campfire, talking nonsense with friends, and because the bay is so far north, in summer the daylight seems to last forever. But I’ve even paddled there in the middle of winter, when it’s freezing, because then you get the northern lights, and the aurora crackling over the sky at night is beyond fabulous.

It is a place that can seem too exotic, too perfect, too far away from other human beings to be real.”

Steve Backshall’s Ocean tours the UK from 19 October–3 November. For tickets, please visit stevebackshall.com

The yoga teacher

Helen Wilson – Swansea Bay, Wales

“I teach what is thought to be the largest outdoor yoga class in Europe on Swansea Bay. Every time I go there to teach a class, I see the pleasure and the calmness that it brings to others.

It’s hard to appreciate just how wonderful it is to practise yoga on a beach until you’ve done it on Swansea Bay, looking out over to the Mumbles as the sun starts to go down. There is something about the bay that encapsulates the calmness and tranquility that nature can bring us – even though it is an urban beach, linked to the city.

When you practise yoga, you try to stay in the present moment, and practising on that beautiful beach gives me and my students a unique opportunity to connect with our senses – to look out at the horizon, notice the reflection of the clouds in the water, feel the sea breeze and the sand beneath our feet, smell the saltwater. After the session, some of us will go into the sea for a swim or a paddle, so we end the class by connecting with the sea and feeling the water on our skin.

It’s a sensory experience which is so enriching, compared to practising yoga within the four walls of an urban studio.

My students and I often get into a meditative state, for example, by focusing on the sound of the waves breaking. Being out in the big open space of the beach generally makes people less self conscious as well – the ocean and the wide expanse of the bay brings a sense of freedom and possibility. It allows me to quickly disconnect from the troubles of the outside world. When I’m practising yoga there, I very quickly feel a release from the pressures and strains of my everyday life. And it gives me a sense of joy and peace.”

Helen Wilson is the founder of Womankind Yoga, which runs regular yoga classes on Swansea Bay. www.womankindyoga.com

The writer

Michael Morpurgo – Rushy Bay, Bryher, Isles of Scilly

“I’ve been going to the Isles of Scilly every summer for more than 50 years. Rushy Bay is very beautiful and very private, with the whitest, finest sand of any beach I’ve ever seen, and it is usually empty. If you find anyone on it, they’re probably lost.

The bay stretches out in a wonderful wide curve between rocks at each end, and about half a mile out to sea there’s an uninhabited island called Samson Island. It’s an extraordinary place, where people lived for hundreds of years. But in the 19th century, everyone had to leave because the well dried up. It’s an island of ghosts, really, now.

It’s wonderful to sit there on the sand, with the grassy dunes rising up behind you, protecting you from the wind, and look out across the blue-green sound at one of the great views of the world, full of ancient history.

During a raging storm, the sea – which is freezing – powers in from the Atlantic and looks as if it’s going to sink the island, it’s so fierce. And the next day, it will be as calm as you like.

I write by hand in school exercise books and I have sat on that beach many times and written stories. Even the rocks on that beach have got stories to tell. There are probably more wrecks around Scilly than anywhere else in the world, because it’s right at the entrance to the Channel. Sailors for centuries have sailed too close: get on the wrong side of the wind at Rushy Bay, and nothing will stop you getting blown on to the rocks.

It’s a very good place for collecting cowrie shells, for talking and walking, and for paddling in the sea with grandchildren. I often go there in the morning, read or write, and make the first footprints in the sand, listening for the sounds of the oystercatchers tinkling in the air before they land in twos and threes on the shoreline to fish. And so, whenever I think of the island, that sound comes into my mind, and I hear again the song of the Isles of Scilly: the song of the oystercatcher.”

Finding Alfie by Michael Morpurgo is out now and The National Theatre’s acclaimed production of War Horse returns to the stage in a UK tour this September

The walker

Anita Sethi – North Landing Beach, Yorkshire coast

“I discovered North Landing beach quite by chance after hiking along the Yorkshire coast from Scarborough. I was exhausted when I arrived, and this beach – with all its amazing wildlife – was so reviving. It’s near RSPB Bempton Cliffs nature reserve. There are seals and a seabird colony – I will never forget hearing the different birds singing as they swooped around the enormous Flamborough cliffs, and seeing a puffin for the first time, I felt an almost childlike delight. There was a sense of being an adventurer, of discovering somewhere wild and free.

It’s off the beaten track and quite unknown. You can hike from North Landing Beach to Thornwick Bay, which is full of smugglers’ caves – caves which you can actually walk through. Along the way, you’ll see bright hotspots of moss and lichen set off against the stones, and wildflowers growing on the cliffside. You’ll sense the movements of the Earth spinning, you’ll see the changes in the sky and the landscape from hour to hour, you’ll see the ebb and flow of the sea, the pull of the moon, the sun rising or sinking in the sky. And you’ll gain a sense of perspective about your place in the universe.

I grew up in a city and being close to wildlife and birds – so close you can hear their wings flap – it makes me feel connected with life, with nature. It brings back a primal sense of astonishment, that I exist, on this amazing planet, with all these extraordinary creatures.

I think it’s important to experience that restorative power of nature, and to understand that if we don’t care for the sea, if we keep destroying our planet and putting plastic and pollution in the ocean, we won’t have that respite any more. We won’t be able to experience that restoration. And it will be heartbreaking.”

Anita Sethi is a nature writer and author of I Belong Here: a Journey Along the Backbone of Britain. www.anitasethi.com

The forager

Jayson Byles – Catterline Bay, Scotland

“My favourite beach is Catterline Bay on the north-east coast of Scotland. It has a diverse, rocky terrain, which means you can forage many different types of seaweed there in different seasons. For example, dulse, a red, smoky, salty seaweed whose nickname is bacon of the sea, and winged kelp – or dabberlocks, as it is known in Scotland – a brown seaweed, which is super versatile and very high in naturally occurring monosodium glutamate (MSG). That means you can use it to wrap other food and it will enhance the flavour of whatever you’re cooking. I’ve also found coastal plants like sea rocket there, growing wild.

It’s a very atmospheric beach. All you can see when you look out is the ocean. When I’m there, I feel as if I’m out in the wild, like I’m the only human who’s ever been there. I’ll go to forage – and snack on – seaweed in the evening at low tide, then stay to watch the sunset.

My relationship with the sea is very nurturing. It provides for me and helps me put food on the table, and so I try to reciprocate by sharing my knowledge of foraging with others. I want people to fall in love with the sea and take care of it.

A lot of my heritage is Polynesian, from the Pacific Islands, and people who know me say I have saltwater in my veins. If I’m away from the sea for too long, I get withdrawal symptoms. I feel this craving to go and smell the sea.

Catterline Bay is on the North Sea. But every time I put my foot in the water, I feel connected to the Pacific, I feel connected to my home.”

Jayson Byles runs seawood foraging and cooking workshops for schools and individuals via www.EastNeukSeaweed.com

The surfer

Alys Barton – Llangennith Beach, Wales

“I grew up surfing at Llangennith Beach – I caught my first wave here when I was 13. Now I’m the European, British and English Surfing Champion and I feel very lucky to have the waves at Llangennith on my doorstep. It offers the most consistent break on the Gower peninsula – it’s like a playground for surfers, there are always waves there, and they can range from really small to very big, because it gets a lot of swell from the ocean.

I do most of my training there and my favourite time to surf is sunset. On Llangennith, the sun sets right in front of you, as you’re looking out to sea. The beach is super sandy, but it also gets lots of little rocks, because there’s a massive tide here. It’s spacious – there’s a huge amount of beach to walk on – and at sunset, it’s peaceful and quiet.

As a surfer, I have learned to appreciate the power and unpredictability of the sea. It can be a frustrating place for me, but it can also be liberating, being in an environment that I can’t control. When I’m out there on my board, I can let go of everything, and just enjoy it. And then I feel very lucky that I have the opportunity to do something so exhilarating and exciting, every day, in such a beautiful place.”

Rachel Reeves talks to business executives. She met some in December, after a £150,000 donation to Labour from a financial services firm. She met more in January, at capitalism’s annual jamboree in Davos. And just this week she told a meeting of City bankers their “fingerprints are all over” Labour’s manifesto.

But she does not talk so much to young people worried about the climate emergency. Or so 23-year-old Zak found when he tracked Reeves down to a cafe where she was campaigning on Wednesday morning. “I’m a young person with Green New Deal Rising,” he said, approaching her.

She peered at him, warily. “We’re literally just about to go,” she said, then picked up her handbag and walked away.

Green New Deal Rising (GNDR) does not block roads, smash windows or douse paintings with soup. Instead the youth-focused climate campaign tries to engage politicians and work the political system. It has a plan to short-circuit electoral politics by endorsing a cross-party slate of candidates it hopes will push progressive action on the environment on to the agenda.

“Rachel, please, you barely speak to young people, you barely talk to us,” Zak, whoasked for his surname not to be published, shouted after the shadow chancellor, dodging besuited lackeys to pursue her into the streets of Swindon.

“Rachel, young people are desperate. Climate scientists are saying it’s a code red for humanity, but you’ve backed away from £28bn of climate investment, you refuse to tax the super-rich, you’re refusing to invest in our communities.”

Shortly after, the scene was broadcast on TikTok, Instagram and X, showing Reeves’s refusal to reply thousands of the campaign’s followers.

Faced with such situations, Keir Starmer is fond of saying Labour has changed: it is no longer the party of protest. On that the Labour leader’s critics agree: as the presumptive government in waiting, and one that has U-turned already on key environmental and social policies, Labour has changed and is now the party facing protest.

“The Labour party are on track to become our next government but they are not offering us the solutions we need,” said Fatima Ibrahim, the GNDR co-director. “Instead they’re telling us there is no money, whilst courting corporations and refusing to tax the super-rich.”

When the Guardian visited Ibrahim at GNDR’s offices in Bethnal Green, east London, a fidget spinner lay on a table next to a laptop. About 10 young organisers, none over the age of 35, were crammed in, hunched over desks or on phones. “In the election period it’s been quite busy,” Ibrahim said.

On the wall was a large map of the UK, identifying key areas where GNDR hopes its campaigning can sway the vote. Last weekend they were in Brighton Pavilion, where they knocked on more than 1,000 doors for Siân Berry, who is hoping to succeed Caroline Lucas as its Green MP. This weekend they will be in Bristol Central, where Carla Denyer, the Greens’ co-leader is thought to have a strong chance of unseating Thangam Debbonaire, Labour’s culture spokesperson.

Controversially, GNDR is also backing six Labour candidates: Olivia Blake in Sheffield Hallam, Clive Lewis in Norwich South, John McDonnell in Hayes and Harlington, Bell Ribeiro-Addy in Clapham and Brixton Hill, Zarah Sultana in Coventry South and Nadia Whittome in Nottingham East. This is despite the party being the butt of much of the group’s critical campaigning, and now also being notorious for its ruthless moves to silence dissent.

In all, counting independents and a couple of Lib Dems – but no Conservatives – GNDR has identified 15 candidates who align with its aims and politics, and who it hopes will form a “climate caucus” within parliament.

Ibrahim said: “We have to start building the political bloc who can be a vanguard for the green new deal, and so in this election, we have seats and candidates that we’re organising around.

“We’ve seen it with even Caroline Lucas, the sole Green MP, and what she’s been able to do over the last 10 years to make climate change mainstream … So we’re hoping we can replicate that with a group of MPs who are aligned around the green new deal and who are then supported by a movement that is organising on the outside.”

Ibrahim and her co-director, Hannah Martin, started campaigning for a green new deal in 2019, taking inspiration from the the US green new deal movement. “And seeing the energy of ‘the Squad’, the political grouping who were leading that in the US, matched by a vibrant youth movement, the Sunrise Movement, we were inspired in recreating that,” Ibrahim said.

In 2021, Ibrahim and Martin decided the policy work they had begun with would not be enough and decided to focus on the movement side, and Green New Deal Rising was born. They also pivoted to youth organising, “because we were young people and we wanted to organise people like us”, Ibrahim said.

A week before the Guardian met Ibrahim, GNDR activists turned up at Labour’s clause V meeting, where the party’s bigwigs were gathering to sign off on the manifesto. “I just want to talk about how you’re letting our generation down,” a young woman was recorded telling David Lammy, the shadow foreign secretary.

GNDR hopes to reignite a youth interest in electoral politics that was last seen in the grassroots group Momentum, before Jeremy Corbyn was expelled from the Labour party. But where Momentum had deep ties to Labour and party politics, GNDR’s activism is focused on the cause. Its targeting of Labour is instrumental, rather than ideological.

“I think that’s where we’re different to other movements,” said Ibrahim. “It’s that we’re combining the kind of deeply political organising with social movement vision and radicalism.

“We particularly wanted to organise gen Z and millennials because it felt like it was a generation that had a shared story and a shared experience of the world. Like whether you’re 31 like me or you’re 16, we have something in common, which is we’ve only known crisis – we were born into a climate crisis, there’s been economic crashes, work is becoming increasingly precarious, our communities are changing for the worse in many ways – and that could bind our our generations together to fight for an alternative.”