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**More or Less**

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

Latest Episodes:

Should we have smaller families to save the planet? Jul 23, 2018

Show notes

Having one fewer child could be the biggest thing you do to reduce your carbon footprint

How to Cycle Really Fast Jul 20, 2018

Show notes

How much better are the pros than the rest of us and how effective is slipstreaming?

Should We Have Smaller Families To Save The Planet? Jul 15, 2018

Show notes

The planet is warming up and some people are giving up on having children to try and save it. Are they right? More Or Less looks at just how bad having children is for the environment and whether not having them could halt climate change.

(image: A one child family playing in the park. Credit: Shutterstock.)

Are there more stars than grains of beach sand? Jul 06, 2018

Show notes

The astronomer, Carl Sagan, famously said that there were more stars in our Universe than grains of sand on the Earth’s beaches. But was it actually true? More or Less tries to count the nearly uncountable. Content warning: This episode includes gigantically large numbers. (Photo: The barred spiral galaxy M83. Credit: Nasa).

Running at the World Cup Jun 29, 2018

Show notes

This week we take a look at some of the statistics which have caught our attention at the World Cup. There has been much debate in both the press and social media about the large distances which Russian football players have run in their first two games. We look at how they compare to other teams and what it might signify. Also –is it just bad luck that Germany has crashed out of the competition?

Presenter: Charlotte McDonald Producer: Richard Vadon

(Picture: Artem Dzyuba of Russia celebrates scoring against Saudi Arabia. Credit: Xin Li/Getty Images)

How many words do you need to speak a language? Jun 22, 2018

Show notes

Ein Bier bitte? Loyal listener David made a new year's resolution to learn German. Three years later, that's about as far as he's got. Keen to have something to aim for, he asked More or Less how many words you really need to know in order to speak a language. Reporter Beth Sagar-Fenton finds out with help from Professor Stuart Webb, and puts Tim through his paces to find out how big his own English vocabulary is. (Image: The World surrounded by Flags. Credit: Shutterstock) Presenter: Tim Harford Reporter: Beth Sagar-Fenton Producer: Charlotte McDonald, Lizzy McNeill

FIFA World Cup Extravaganza Jun 15, 2018

Show notes

The World Cup starts this week and the More or Less team is marking the event by looking at the data behind all the World Cups since 1966 (our data shows that this was the best world cup because England won).

We’ll answer all football fans most burning questions; which World Cups have seen the most shots, fouls, dribbles and most importantly goals? Do the statistics back up the reputations of famous players like Pele, Cruyff, Maradona and Paul Gascoigne? And which of them actually committed the most fouls at one World Cup?

Ben Carter talks to Author and Opta Sports football statistician Duncan Alexander about how the ‘beautiful game’ has changed…through numbers.

(Picture: The World Cup, credit: Shutterstock)

WS More or Less: How Many Animals are Born Every Day? Jun 10, 2018

Show notes

From penguins to nematodes, is it possible to count how many animals are born around the world every day?

That’s the question one 10-year-old listener wants answered, and so reporter Kate Lamble sets off for the zoo to find out. Along the way, she discovers that very, very small animals are much more important than very, very big animals when it comes to the sums.

(09.05) Artificial Intelligence or A.I. has been hailed as the answer to an easier life – but will it really make the world a better place, or just reinforce existing prejudices? Tim Harford speaks to author Meredith Broussard about ‘techno-chauvinism’.

Infant Mortality, How to Reduce Exam Revision With Maths, London’s Murder Rate Jun 08, 2018

Show notes

(0.24) Infant mortality is on the rise in England and Wales – but is this change down to social issues such as obesity and deprivation, as claimed, or the way doctors count very premature babies?

(9.45) A self-confessed lazy student wrote in to ask how he can minimise exam revision, while still ensuring a high chance of passing – we do the sums.

(15.44) Do a billion birds really die each year by flying into buildings? We explain another zombie statistic which refuses to die.

(18.40) It was reported earlier this year that London’s murder rate was higher than New York City’s – but how do the two cities compare now, and is there any value in these snapshot comparisons?

Counting Rough Sleepers Jun 04, 2018

Show notes

How do you count the number of people sleeping rough? According to the latest official figures around 4700 people were sleeping in the streets in the autumn of 2017. And that got us thinking. These statistics aren’t just downloaded from some big database in the sky. They need – like any statistic – to be collected and calculated. So how is it done?

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