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US National Debt: is $32 trillion a big number?

How concerned should we be about how much the US government borrows?

• 8 mins

Halving inflation, Scottish tidal power and have 1 in 3 women had an abortion?

Will Rishi Sunak鈥檚 pledge to halve inflation happen?

• 31 mins

Will there be just 6 grandchildren for every 100 South Koreans?

We look at the numbers around South Korea鈥檚 birth rate and the reasons why it鈥檚 so low.

• 9 mins

Immigration: A More or Less Special Programme

Who is coming to the UK - and how do we count them?

• 28 mins

Does it take 10,000 litres of water to make a pair of jeans?

The numbers behind water use and denim production.

• 9 mins

Are more adult nappies sold in Japan than baby ones?

We examine a claim related to the perception of Japan as an ageing society.

• 9 mins

Ukraine war: A new way of calculating Russian deaths

How Russian journalists are using probate records to estimate fatalities

• 9 mins

Data, extreme weather and climate change

The role data plays in climate attribution - and why we don鈥檛 always have it

• 8 mins

Are the media exaggerating how hot it is in the Mediterranean?

A look at how accurately media report on the weather 鈥� especially recent heatwaves.

• 8 mins

Why is it so hard to predict the outcome of competitions like the Premier League?

What variables do we look at when we try to predict the outcome of a sports competition?

• 9 mins

How many butterflies are there in the world?

The world鈥檚 butterfly population doesn鈥檛 seem to be online 鈥� so what is it?

• 8 mins

How safe is the release of Fukushima nuclear plant water?

We ask whether there are any risks posed by the release into the Pacific Ocean.

• 9 mins

HS2 and electric cars, UK vs China emissions & massive maths errors

Can you really buy an electric car for everybody in the UK for the cost of HS2?

• 28 mins

What percentage of our brain do we actually use?

Do we have access to some or all of our brain-power?

• 8 mins

Covid deaths, North Sea gas and Chloe Kelly's World Cup penalty

Covid related deaths are rising in England and Wales - we investigate the figures

• 28 mins

Did 35,000 Americans die building the Panama Canal?

We fact check a claim made by Donald Trump about the world famous canal

• 14 mins

Skin cancer, London rents and your great great great granddaughter

Is it true that 1 in 4 men and 1 in 5 women in the UK will get skin cancer?

• 28 mins

How to approach the world through numbers

Professor David Sumpter talks to Tim Harford about his new book

• 9 mins

Social housing, NHS workforce and Liz Truss debt claims

Have the Tories really built a record number of social rent homes since 2010?

• 27 mins

Which city has the longest canals?

We dive into the world of waterways after a listener asked who has the longest canals.

• 9 mins

NHS consultant pay, Net Zero claims and Scotland's ferry woes

Are consultants in England really paid an average of 拢120,000 a year?

• 30 mins

Is the UK really ahead in cutting carbon emissions?

As the UK changes course in its path to net zero, how does it compare with other nations?

• 8 mins

Vaccine claims, Alzheimer's treatment and Tim's Parkrun times

We debunk claims about excess deaths and the covid vaccine made by YouTuber John Campbell

• 28 mins

Are half the words in English from French?

We ask whether almost half the words in the English language are of French origin.

• 9 mins

Greedy jobs and the gender pay gap

Tim Harford discusses the work of Nobel Economics prize winner Claudia Goldin

• 12 mins

What do windscreen splats tell us about insect decline?

We ask whether the 鈥榳indscreen phenomenon鈥� suggests falling numbers of insects

• 8 mins

The Overlooked Mathematicians of History

Exploring the global history of mathematics

• 9 mins

Do Indian women own 11% of the world鈥檚 gold?

The cultural importance of gold is well known 鈥� but how much do Indians actually own?

• 8 mins

Can maths prove the existence of aliens?

We look a famous equation which tries to explain whether life exists in outer space

• 10 mins

Are women in the UK the biggest binge drinkers in the world?

Checking out stats on boozing Brits and fishing fleets in the South China Sea

• 8 mins