In the record, not in the score. 434 sentences and 17 questions from YouTube captions. The selection rule did not choose it, so it does not count towards the score. How transcripts are chosen
Fact or Fluff
Supported28Partly supported9Contradicted by evidence1
38 claims checked against independent sources, chosen by a fixed rule (every material claim (one that supports an argument, a policy or an attack) in the transcripts that count towards a score; in other transcripts, up to 10 claims spread evenly across each; plus any claim an emotional passage relies on). 0 more were found but not checked yet; they do not count.
Quotes leave out filler sounds and repeated words. Words in [square brackets] correct a transcript that misheard or misspelt them. The transcript keeps every word as published.
Supported85% confidence
“In the UK, we have some of the least insulated homes in Europe.”
Claim checkedThe UK has some of the least insulated homes in Europe.
A tado° study of 80,000 homes in 11 European countries found UK homes lost heat fastest; other analyses rank UK homes among the least insulated in western Europe.
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Partly supported60% confidence
“We know we're going to be facing hotter summers, colder winters.”
Claim checkedAs of March 2026, climate change means the UK will face hotter summers and colder winters.
Met Office projections show the UK moving towards hotter, drier summers, which matches the first half of the statement. The same projections show winters becoming warmer and wetter on average (around 2C warmer by 2080-99 on current policies), not colder, although cold winters will still occur sometimes.
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Supported75% confidence
“The UN Secretary General has said, this is the crucial decade of action.”
Claim checkedThe UN Secretary-General has described the current decade (the 2020s) as the crucial decade for climate action.
UN Secretary-General António Guterres has repeatedly framed the 2020s as the critical or decisive decade for climate action, including in his COP26 address titled 'Action and Solidarity - The Critical Decade' in November 2021.
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Supported85% confidence
“At the moment, we have an energy cap up until June.”
Claim checkedAs of March 2026, the current Ofgem energy price cap level runs only until June 2026.
Ofgem announced on 25 February 2026 that the energy price cap for 1 April to 30 June 2026 would be £1,641 a year for a typical dual-fuel household, a 7% fall. In March 2026 the cap was therefore set only until the end of June, with the next level still to be announced.
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Supported85% confidence
“there was a report from the Committee on Climate Change that showed that if we decarbonised by 2050, that would cost less than just one single time of these energy shocks that we keep having”
Claim checkedA Climate Change Committee report (March 2026) showed that decarbonising the UK by 2050 would cost less than a single fossil fuel energy price shock like 2022's.
On 11 March 2026 the Climate Change Committee published analysis finding that the net additional cost of reaching net zero by 2050 (around £4bn a year on average from 2025 to 2050) would be less than the cost of a single fossil fuel price shock on the scale of 2022, when bill support alone cost taxpayers about £41.6bn in 2022-23.
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Supported80% confidence
“right now we're taxing earned income more than we're taxing unearned wealth”
Claim checkedAs of March 2026, the UK taxes earned income at higher rates than income from wealth such as capital gains.
From 6 April 2026 capital gains tax is charged at 18% or 24%, while income tax on earnings is 20%, 40% or 45% (before National Insurance, which applies to earnings but not gains). Gains are therefore taxed at lower rates than earned income at every band.
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Supported80% confidence
“He's launched an illegal war in Ukraine.”
Claim checkedVladimir Putin launched an illegal war in Ukraine (the full-scale invasion from February 2022).
In March 2022 the UN General Assembly voted 141 to 5 to deplore Russia's aggression against Ukraine as a violation of the UN Charter and demanded it end its 'unlawful use of force'. 'Illegal' is a legal judgement, but it matches the position of the large majority of UN members.
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Supported85% confidence
“We have seen thousands and thousands of people die.”
Claim checkedThousands and thousands of people have died in Russia's war in Ukraine since 2022.
UN human rights monitors have recorded civilian deaths in Ukraine in the tens of thousands since February 2022, with 188 civilians killed in February 2026 alone; military deaths are far higher. 'Thousands and thousands' understates the toll, if anything.
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Partly supported60% confidence
“real security in this country looks like tackling the climate crisis, having pandemic resilience, and taking cyber security seriously”
Claim checkedA report from the UK's intelligence chiefs, including the heads of MI5 and MI6, says real national security means tackling the climate crisis, pandemic resilience and cyber security.
A national security assessment informed by MI5 and MI6, published in part in January 2026, warned that ecosystem collapse and climate change threaten UK security. It focused on environmental risks; the claim adds pandemic resilience and cyber security, which that report did not centre on.
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Partly supported55% confidence
“the UK security adviser, Jonathan Powell, not someone whose politics necessarily align with mine all the time, said that Iran were at the negotiating table”
Claim checkedUK national security adviser Jonathan Powell had said Iran was at the negotiating table and ready to make a deal before the US-Israeli strikes on Iran in late February 2026.
US-Iran talks, mediated by Oman, were under way in Geneva until the US-Israeli strikes of 28 February 2026, and news reports said Jonathan Powell privately judged a deal to be within reach. But the account comes from unnamed diplomats, not a public statement by Powell; one quoted him as saying Iran was 'not quite there yet' on inspections, and Downing Street disputed that he took part in the final talks.
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Partly supported70% confidence
“a representative of Oman said, we're a couple of days away from that happening”
Claim checkedBefore the US strikes on Iran, a representative of Oman said Iran and the US were a couple of days away from reaching a deal.
Oman's foreign minister said a US–Iran deal was 'within our reach' and announced a breakthrough just before the strikes, but also said remaining issues could take a few months; 'a couple of days away' overstates it.
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Partly supported70% confidence
“Trump came in and assassinated the Ayatollah”
Claim checkedDonald Trump had Iran's Supreme Leader Ayatollah Ali Khamenei killed in late February 2026 while a deal was close.
Ayatollah Ali Khamenei was killed on 28 February 2026 in joint US-Israeli strikes on Iran, which Donald Trump's administration backed and took part in. Reports describe the strike that killed him as carried out by Israeli aircraft with US support, so attributing it to Trump alone leaves out Israel's leading role.
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Supported85% confidence
“the UK has signed the Non-Proliferation Treaty, as have many other countries”
Claim checkedThe UK, like many other countries, has signed the Nuclear Non-Proliferation Treaty.
The UK is a party to the Treaty on the Non-Proliferation of Nuclear Weapons and reports to its review conferences; the UK government publishes national reports on its actions under the treaty. Nearly every country in the world has joined the treaty.
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Supported80% confidence
“we've still not seen any evidence that Iran have nuclear weapons”
Claim checkedAs of March 2026 there was no evidence that Iran possessed nuclear weapons.
On 4 March 2026 IAEA Director General Rafael Grossi said there had been no evidence of Iran building a nuclear bomb, and a 2025 US intelligence assessment said Iran was not building a nuclear weapon. The IAEA did report that Iran held a large stockpile of uranium enriched close to weapons grade.
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Partly supported75% confidence
“86% of our arms exports come from the USA”
Claim checked86% of the UK's arms exports (meaning imports) come from the United States.
SIPRI data show the UK received 86% of its arms imports from the United States in 2020-24, so the figure is right but it describes imports, not exports as stated. The UK is itself a major arms exporter.
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Supported85% confidence
“Trident, our nuclear capability, hasn't had a successful test case in the last 10 years”
Claim checkedThe UK's Trident nuclear missile system had not had a successful test launch in the ten years before March 2026.
The UK's last successful Trident II D5 test launch was in 2012. The next two tests, from HMS Vengeance in 2016 and HMS Vanguard on 30 January 2024, both failed, so there had been no successful UK test in the ten years before March 2026.
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Supported70% confidence
“Tony Blair said that it would be unthinkable for us to use our nuclear weapons without the assistance of the United States.”
Claim checkedTony Blair had said it would be unthinkable for the UK to use its nuclear weapons without the support of the United States.
Tony Blair wrote that it is 'frankly inconceivable we would use our nuclear deterrent alone, without the US'. Polanski's 'unthinkable' is a close paraphrase of that remark.
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Supported55% confidence
“If we'd frozen rents in autumn 2022, we would have saved on average £3,300 per household per year in rent”
Claim checkedIf private rents had been frozen in autumn 2022, the average renting household would be saving about £3,300 a year in rent by early 2026.
ONS figures put the average UK private rent at £1,374 a month in February 2026, against about £1,200 in October 2023 (£1,307 in October 2024 was £105 higher than a year earlier) and lower still in autumn 2022. That implies a rise of roughly £250-£290 a month, or about £3,000-£3,500 a year, consistent with the £3,300 figure. It is the Green Party's own estimate, and it assumes a freeze would have had no other effects on the market.
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Partly supported45% confidence
“then would have been £18 billion of purchasing power”
Claim checkedA rent freeze from autumn 2022 would have left renters with £18 billion a year of extra spending power by 2026.
The £18bn figure is £3,300 multiplied by the roughly 5.5 million private renting households in the UK, so the arithmetic follows from the £3,300 estimate. It is a Green Party calculation, not an official figure, and it counts savings that would be partly offset in practice (for example, by lower spending by landlords or changes in housing benefit).
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Supported80% confidence
“His mission is economic growth.”
Claim checkedKeir Starmer's government has made economic growth one of its missions (as of March 2026).
The UK government's Plan for Change lists economic growth as one of its missions. Whether growth should be a mission or an outcome is Polanski's opinion and was not rated.
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Supported75% confidence
“the government launched Great British Energy, we're now 18 months on”
Claim checkedThe government launched Great British Energy about 18 months before March 2026.
Great British Energy was announced in July 2024 and its Aberdeen headquarters confirmed in September 2024, about 18 months before this March 2026 interview.
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Supported75% confidence
“We privatised the water companies, we're one of the few countries in the world to have private water.”
Claim checkedThe UK (in England and Wales) privatised its water companies, and it is one of few countries in the world with a privately owned water system.
The water and sewerage authorities of England and Wales were sold to private companies in 1989. ITV News describes England and Wales as among the first countries in the world to fully privatise their water and sewage systems, and a fully private system is rare internationally. The statement leaves out a qualifier: water in Scotland and Northern Ireland stayed in public ownership, and Welsh Water is run on a not-for-profit basis.
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Supported60% confidence
“up to 30% of bills that consumers are paying, or citizens are paying, go straight towards servicing the debt and to shareholder dividends”
Claim checkedUp to 30% of what customers pay in water bills goes on servicing water companies' debts and paying shareholder dividends.
A Guardian analysis of company accounts found water firms in London and parts of southern England spent up to 28% of bill revenue servicing debt; Thames Water averaged 27.8% between 2018 and 2023. Adding shareholder dividends brings the highest cases to about 30%, which fits 'up to 30%', though the average across all companies is lower.
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Supported90% confidence
“we have water companies in the UK, pumping sewage into our rivers and seas”
Claim checkedWater companies in the UK are discharging sewage into rivers and seas (as of March 2026).
Environment Agency monitoring data show storm overflows in England discharged sewage about 292,000 times in 2025, for about 1.9 million hours, into rivers and coastal waters.
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Partly supported60% confidence
“the Rosebank oil field will have cumulative emissions of 28 of the lowest income countries around the world all put together”
Claim checkedBurning the Rosebank oil field's output would produce emissions equal to the combined emissions of 28 of the world's lowest-income countries.
Campaigners' figure, based on World Bank data, is that burning Rosebank's oil and gas would release up to about 200 million tonnes of CO2, more than the combined annual emissions of 28 low-income countries. The statement turns this into 'cumulative emissions', but the comparison is between Rosebank's lifetime emissions and one year of those countries' emissions.
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Supported80% confidence
“We have extracted most of the assets from that.”
Claim checkedMost of the UK North Sea's oil and gas has already been extracted.
About 47.7 billion barrels of oil equivalent have been extracted from the UK continental shelf since the 1960s, against about 2.9 billion in remaining reserves and 6.2 billion in contingent resources (North Sea Transition Authority figures). Analysis of official projections puts the share already extracted at around 90-93%.
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Supported70% confidence
“when we do extract that oil and gas, we're selling the international market anyway”
Claim checkedOil and gas extracted from the North Sea, including Rosebank, is sold on the international market.
About 80% of UK North Sea crude is exported for refining abroad, and North Sea oil is sold at international market prices. Rosebank's oil is expected to follow the same pattern.
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Contradicted by evidence60% confidence
“the government back then did absolutely nothing about it”
Claim checkedThe UK government did nothing to stop the closure of the Port Talbot steelworks' blast furnaces (closed in 2024).
Port Talbot's last blast furnace closed on 30 September 2024. In September 2023 the Conservative government agreed a £500m grant towards Tata Steel's £1.25bn switch to an electric arc furnace, and an £80m transition fund was set up for affected workers. Critics argued this was not enough, but the government did act.
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Supported90% confidence
“then we had the Labour government under Keir Starmer stepped in”
Claim checkedAfter the Port Talbot steelworks closed, the Labour government under Keir Starmer stepped in to support the UK steel industry.
In April 2025 the government recalled Parliament and passed the Steel Industry (Special Measures) Act to take control of British Steel's Scunthorpe works.
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Supported65% confidence
“The vast majority of people in the country, both in the UK, but actually this has been done globally as well, want to see action on the climate crisis.”
Claim checkedThe vast majority of people in the UK, and around the world, want action on the climate crisis.
The government's public attitudes tracker found 77% of people in the UK concerned about climate change and 68% supporting government action to cut emissions (12% opposed) in 2025. IPPR found around 60% backed the 2050 net zero target. That is a clear majority; 'vast' is a little generous for some measures.
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Supported80% confidence
“all of which for Labour government have taken lots of money from, including £4.1 million from Quadrature Capital”
Claim checkedLabour received £4.1 million from Quadrature Capital, a hedge fund invested in private healthcare, oil and gas, arms and gambling companies.
Quadrature Capital gave Labour about £4 million before the 2024 election, the party's largest single donation; the fund held shares in fossil fuel, arms and private health firms.
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Partly supported70% confidence
“We can connect so we can import the wind power and the solar panel from other countries too, like France and Spain and Germany.”
Claim checkedThe UK can use interconnectors to import wind and solar power from countries such as France, Spain and Germany (as of March 2026).
Great Britain has electricity interconnectors to France, Belgium, the Netherlands, Norway, Denmark and Ireland, so importing power from France is possible. The link to Germany (NeuConnect) is still under construction and due in 2028, and there is no interconnector to Spain.
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Supported65% confidence
“we're not taxing kerosene on jet fuel”
Claim checkedThe UK does not tax kerosene jet fuel, while drivers pay fuel duty (as of March 2026).
UK aviation turbine fuel (kerosene) used for commercial flights carries no fuel duty, and most private jet flights also pay none. Fuel used for private pleasure flying is the exception and is charged duty, and private jets pay higher Air Passenger Duty.
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Supported55% confidence
“under 50s in the UK, the Green Party would come out top. We are number one by quite some way.”
Claim checkedIn polls in March 2026 the Green Party came first, by a wide margin, among voters under 50 in the UK.
A YouGov poll in early March 2026, after the Greens' Gorton and Denton by-election win, put the Greens first among voters aged 18-49 (27% among 25-49 year olds) and well ahead among under-30s. Whether the lead was 'by quite some way' for all under-50s depends on the poll.
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Not counted
8
Procedural claims (the speaker's own dates, petition counts, who said what, background), clear slips of the tongue, and words read out from someone else. They stay on the record and do not count in Accuracy.
Contradicted by evidence“Thatcher nationalised water companies, I think in 1984, then British Gas in 1986”Slip of the tongue: He meant privatised: he calls it a disaster while arguing for public ownership. Water was privatised in 1989 and British Gas in 1986. · Bloomberg Zero interview: climate, energy and the economy, 26 Mar 2026
Can't verify“one of our Green MPs, Carla Denyer, is putting forward a bill that's essentially saying rather than putting money into fossil fuel subsidies, we should transition those billions of pounds”Procedural: Says a colleague is putting forward a bill; an event, not a claim. · Bloomberg Zero interview: climate, energy and the economy, 26 Mar 2026