More or Less

A new study led by Imperial College in London suggests that data from loyalty card spending in supermarkets and pharmacies could be used as a way of detecting ovarian cancer much earlier. Tim Harford discusses the findings with Professor Hannah Fry, who was most recently on the show talking about her own experience with cancer.

Has trade with the EU increased since Britain left the European Union? Tim Harford and the team look at a claim suggesting just that. There’s a row over the renaming of a street in North London previously called Black Boy Lane – but how much has it really all cost? Also are there more pensioners in “millionaire households” than pensioners in poverty. And mathematician Hannah Fry talks about a new study suggesting cases of ovarian cancer can be detected by looking at spending on loyalty cards.

A widely respected and cited study says humans and livestock account for 96% of all mammals on Earth. We ask how the study was carried out and what hope there might be for the future. Plus we answer another listener question about whether most mammals are in fact rodents. With the help of Dr Hannah Ritchie, Deputy Editor at Our World in Data and Dr Axel Rossberg, Reader in Theoretical Ecology at Queen Mary University of London.

Jeremy Hunt has pledged in a new social media video to halve the UK’s high rate of inflation. Tim Harford and the team fact check the Chancellor’s claims. Also – CPI, CPIH, RPI – which measure of inflation is best for assessing the impact of the rising cost of living? Plus has the number of GPs in England gone up or down since the start of the pandemic. And does toilet paper cause 15% of global deforestation?Presenter: Tim Harford Series Producer: Jon Bithrey Reporters: Josephine Casserly, Nathan Gower, Louise Hidalgo, Charlotte McDonald Sound Engineer: James Beard Production Co-ordinator: Helena Warwick-Cross Editor: Richard Vadon

A British company has claimed that the production and use of toilet paper is responsible for 15% of deforestation globally. We investigate the claim and ask what the true environmental cost of toilet paper is. Charlotte McDonald talks to climate change scientist Professor Mary Gagen, chief adviser on forests to the World Wide Fund for Nature, the WWF.Presenter: Charlotte McDonald Producer: Louise Hidalgo and Jon Bithrey Editor: Richard Vadon Production Coordinator: Helena Warwick-Cross Studio Engineer: Rod Farquhar

How long are people really waiting when they call 999 for an ambulance? Tim Harford and the team examine in detail the sheer scale of delays in responding to emergency calls. We also ask why the NHS is facing a crisis when it’s got more funding and more staff than before the pandemic, with the help of Ben Zaranko from the Institute for Fiscal Studies. Plus we fact check a claim from one of Britain’s leading teaching unions about pay. And are there more pubs in Ireland or Irish pubs in the rest of the world?Presenter: Tim Harford Series producer: Jon Bithrey Reporters: Josephine Casserly, Nathan Gower, Paul Connolly Sonic Landscape: James Beard Production Co-ordinator: Helena Warwick-Cross Editor: Richard VadonImage: Andy Rain/EPA-EFE/REX/Shutterstock

How did an edition of More or Less from 2017 end up influencing the choice of official names for extremely large numbers? We tell the tale of how an interview between presenter Tim Harford and maths whizz Rob Eastaway did just that. Also featuring Professor Richard Brown, head of metrology at the UK’s National Physical Laboratory.Presenter: Tim Harford Producer: Jon Bithrey Editor: Richard Vadon Production Coordinator: Janet Staples Sound Engineer: James BeardImage: Large number, Credit: Getty Images

Tim Harford and the team return for a new series of the number crunching show. With the huge pressures facing the NHS we ask how many people may be dying because of treatment delays in A&E. We hear what the latest census tells us about changing religious identity in Northern Ireland. We look at misleading claims about covid vaccines after the collapse of American football player Damar Hamlin. And we hear how More or Less has wielded its influence over how we all describe very large numbers.Presenter: Tim Harford Series producer: Jon Bithrey Reporters: Nathan Gower, Louise Hidalgo, Charlotte McDonald Production Coordinator: Brenda Brown Sound Engineer: James Beard

When the pandemic took hold, the Chinese government imposed a zero-Covid policy that aimed to contain the virus through mass-testing and strict lockdowns. But early in December, amidst widespread public protests and the spread of the omicron variant to more than 200 cities, those draconian, highly restrictive measures were lifted almost entirely. For the first time in just under two years, the majority of the country’s near one-and-a-half billion citizens were free to meet, mix and mingle where they pleased, triggering what experts believe is a gargantuan wave of covid infections and related deaths. Some analysts say death rates could be as high as15,000 per day. But the Chinese authorities are reporting five or fewer deaths a day. The numbers don't stack up so More or Less's Paul Connolly speaks to some of the world's leading experts and epidemiologists to work out if China's data on covid deaths can be trusted - and, if not, what the real death toll could be.

It's possible that the question we focus on in this week's programme occurred to you as you were sipping on an Irish Coffee in Bubbles O'Leary's in Kampala, Uganda: Where can the most Irish pubs be found - in Ireland? Or in all other countries combined? The popularity and sheer ubiquity of Irish pubs is a thing to behold. In 2015, the Irish Pubs Global Federation said there was approximately 6500 Irish pubs doing business outside the Emerald Isle - and our own research tells us there's at least one Irish bar in more than 160 of the world's 195 countries. But what is the secret, the recipe for global success? And can the More or Less team track down a definite number, thus answering the question some of you will have pondered whilst settling into a firelit Irish bar on a scorching hot day in rural Hawaii.