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More or Less

More or Less

BBC Radio 4 1095 Episodes Sep 19, 2026

Tim Harford explains and sometimes debunks the numbers and statistics used in political debate, the news, and everyday life.

Episodes

Are carrots becoming less nutritious?
Are carrots becoming less nutritious? Sep 19, 2026 538 Are fruit and vegetables less nutritious than they used to be? And is declining soil quality to blame? Loyal listener Sarah got in touch to ask us to investigate an interesting quote from Dr Karan Rajan in a BBC news story. “We know our soil is not as nutrient dense as it was decades ago,” he said. “So a carrot in the 1950s will be far more nutrient-rich than a 2026 carrot.” Is this really true? w
Are bad teeth the number one reason kids go to A&E?
Are bad teeth the number one reason kids go to A&E? Sep 16, 2026 1708 Tim Harford investigates some of the numbers in the news. This week:(00:33) Are crumbling teeth the number one reason children attend A&E? We drill down into the dental health of the nation’s kids.(08:20) The US Ambassador to Israel Mike Huckabee has claimed that a quarter of pharmaceuticals used in the UK come from Israel. We check the facts.(13:20) Is former Education Secretary Michael Gove
Could this be the strongest El Niño in 1,000 Years?
Could this be the strongest El Niño in 1,000 Years? Sep 12, 2026 537 Every year, climate scientists keep a close eye on data coming out of a particular area of the Pacific Ocean. They’re trying to measure the scale of a climate phenomenon - the El Niño event or effect. This is a naturally occurring phenomenon where ocean surface temperatures rise, transferring warmth from the ocean to the atmosphere. This can drive up global temperatures but also play havoc with w
Why are so many ex-prisoners being sent back to prison?
Why are so many ex-prisoners being sent back to prison? Sep 9, 2026 1711 Tim Harford investigates some of the numbers in the news. This week:(00:38) The number of people being recalled to prison after early release in England and Wales is rising sharply. Why?(07:37) Is the UK millionaire an endangered species? We ask Duncan Weldon - he’s like David Attenborough, but for economics.(14:21) A viral graph seems to show that Europe is having a record low year for wildfires.
Is every card shuffle unique?
Is every card shuffle unique? Sep 5, 2026 538 Can it really be true that every shuffle of a deck of cards is unique? Mathematician and stand-up comedian Matt Parker claims that every time you do a shuffle, the cards have never been in that order before. But how can he be so confident? Matt came into the studio armed with a deck of cards and some very big calculations to back up his big assertion, and introduced us to the mind-splitting math
Bonus podcast: Norman Numbers
Bonus podcast: Norman Numbers Sep 4, 2026 404 What's this, an extra podcast? Has Christmas come early? No, the Bayeux Tapestry has instead returned to England for the first time in almost 1000 years.To mark the occasion, we've compiled six snack-sized stats all about the Norman invasion of England to help you have something to talk about in various social situations such a pub quizzes, movie nights and awkwardly quiet lifts. From horses to th
Do Germans really take 19.5 days of sick leave per year?
Do Germans really take 19.5 days of sick leave per year? Aug 29, 2026 538 How do different countries compare, in terms of the amount of time that workers take as sick leave?Loyal listener Dave got in touch to ask us to look at a surprising statistic he saw in the news – that the average German takes 19.5 days of sick leave per year.“This is extremely hard to believe,” he wrote.We track down the – highly reliable – source of the claim, and look at the differences between
How much of the world isn’t owned by anyone?
How much of the world isn’t owned by anyone? Aug 22, 2026 538 Sometimes world events of massive practical significance lead our minds towards some lovely impractical thoughts. So it was for loyal listener, Nigel.Pondering the conflict in Iran, and the maritime ownership of the Straits of Hormuz that has become its focus, his mind wandered to an altogether bigger and - honestly - far less important question.“How much of the world surface actually doesn't belo
14 million deaths or zero deaths? The impact of the USAID cuts
14 million deaths or zero deaths? The impact of the USAID cuts Aug 15, 2026 538 As part of their mandate to stop 'waste, fraud and abuse' in federal government spending, DOGE, the department of Government Efficiency, made large cuts to the amount of money the US spent on foreign aid. The task force, headed by Elon Musk, effectively dismantled the US's largest foreign aid agency, USAID - cancelling many of its programmes and absorbing the remainder into the State Department. T
How much of all the money in the world does Elon Musk have?
How much of all the money in the world does Elon Musk have? Aug 8, 2026 538 Earlier this year, South African-born tech tycoon Elon Musk briefly became the world’s first dollar trillionaire. This prompted loyal listener Stephen to email the More or Less team, to ask us to investigate something his daughter had been pondering: For all Musk’s vast wealth, what does it equate to as a proportion of all the wealth in the world?How much of all the money does Elon Musk have?We se
Would you take £50,000 or a 50/50 chance of £1m?
Would you take £50,000 or a 50/50 chance of £1m? Aug 1, 2026 539 If you had a choice between instantly receiving £50,000 or a 50% chance to win £1m, which would you pick?When YouGov asked exactly that question to people in the UK, 73% said they would take the £50,000, while 21% opted for the 50/50 chance of winning £1m.As you may or may not have imagined, this finding provoked outrage on Twitter, with people saying the UK appeared incredibly risk averse. “This
The mistake in Trump’s tariff formula
The mistake in Trump’s tariff formula Jul 30, 2026 1777 What is the error in the calculation Donald Trump used to work out his new tariffs? What happened when the government ordered a recount of bobbies on the beat?When is a tax freeze not a tax freeze? And do redheads really have a 25% higher tolerance to pain? Tim Harford investigates some of the numbers in the news. Presenter: Tim Harford Reporter: Charlotte McDonald Producers: Nathan Gower and Lizz

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