Governments around the world have promised to fight climate change. But are they also pumping an absolutely massive amount of money into subsidies for fossil fuels? In 2022, an IMF working paper estimated that global subsidies for fossil fuels totalled $7 trillion. But when you dig into that research, you find that this number might not mean what you think it does. We explain how they reached that conclusion, with the help of Angela Picciariello from the International Institute for Sustainable Development, and Nate Vernon, one of the co-authors of the IMF paper.

Just hours after Donald Trump claimed victory in the US presidential election, rumours started swirling that something was afoot. A graph went viral on social media that appeared to show there were 20 million more votes cast in 2020 than in the 2024 election. Where had these supposedly “missing” votes gone? Conspiracy theorists on both sides of the political spectrum began shouting claims of fraud. The answer, it turns out, is rather more straightforward. Presenter: Charlotte McDonald Producer: Lizzy McNeill Series producer: Tom Colls Production co-ordinator: Katie Morrison Sound Mix: Hal Haines Editor: Richard Vadon

A huge quantity of clothing is produced every year around the world. But is so much made that there are already enough tops, trousers, skirts and all the rest to clothe humanity for decades into the future?

That’s a claim that has been percolating around the internet recently, that there are already enough clothes for the next six generations.

Tim Harford and Beth Ashmead Latham explore the source of this claim and, with help from Sabina Lawreniuk from Nottingham University, find that the evidence behind it is far from persuasive.

Presenter: Tim Harford and Bethan Ashmead Latham Producer: Bethan Ashmead Latham Series producer: Tom Colls Production co-ordinator: Katie Morrison Sound Mix: Annie Gardiner Editor: Richard Vadon

The great theories of economics seem to have great explanatory power, but the actual world is often far too complicated and messy to fully test them out.

Professor Ignacio Palacios-Huerta, an economist at the London School of Economics has an answer – sport. In the contained setting of competitive sport, he says, the rules are clear and you know who is doing what. This means, with some analysis, you can see vibrant illustrations of well-known economic theories playing out before your eyes.

Ignacio talks to Tim Harford about some of his favourite economic theories, demonstrated in action in sporting competition.

Presenter: Tim Harford Producer: Natasha Fernandes Series producer: Tom Colls Production co-ordinator: Katie Morrison Sound mix: John Scott Editor: Richard Vadon

Could the cut in winter fuel payments cost thousands of lives? Is it really true that criminals sentenced to three years will be out of prison in two months? Are older drivers more dangerous than young ones? Do Southeastern Railway shift 50 million leaves from their lines?

Tim Harford investigates some of the numbers in the news.

Presenter: Tim Harford Reporters: Bethan Ashmead Latham and Nathan Gower Producer: Natasha Fernandes Series producer: Tom Colls Production co-ordinator: Katie Morrison Sound mix: James Beard Editor: Richard Vadon

On the campaign trail for the US presidency, former president Donald Trump has been saying that the US is becoming a more dangerous than Venezuela.

He also claims that the crime data for the US that the FBI collects is missing the most violent cities.

Is he right? Tim Harford investigates, with the help of Bastian Herre from Our World in Data and Jay Albanese from Virginia Commonwealth University.

Presenter: Tim Harford Producer: Bethan Ashmead Latham Series producer: Tom Colls Production co-ordinator: Katie Morrison Sound Mix: Annie Gardiner Editor: Richard Vadon

Was an MP wrong about the number of people who pay capital gains tax?

Why is 2% the magic number for the rate of inflation?

Donald Trump says US crime figures are fake. Are they?

How do you work out how many buffaloberries a bear eats in a day?

And we fact-check a claim about the prevalence of suicide among GPs. For information and support follow this link: https://www.bbc.co.uk/actionline

Tim Harford investigates some of the numbers in the news.

Presenter: Tim Harford Reporters: Nathan Gower and Bethan Ashmead Latham Series Producer: Tom Colls Production co-ordinator: Katie Morrison Sound mix: Rod Farquhar Editor: Richard Vadon

The question of why some countries are rich and some poor has been described as the most important question in economics.

Perhaps that is why the Royal Swedish Academy of Sciences awarded the Nobel Memorial Prize in Economics to Daron Acemoglu, Simon Johnson and James Robinson for their work on the importance of institutions in the economic fortunes of nation states.

Tim Harford explains the economic theory that underpins their award.

Presenter: Charlotte McDonald Reporter: Tim Harford Producer: Bethan Ashmead Latham Series producer: Tom Colls Production co-ordinator: Katie Morrison Sound mix: Giles Aspen Editor: Richard Vadon

Can we teach BBC political editor Chris Mason some new maths skills? Do 60 of the UK’s richest people pay 100% tax? Have water bills fallen in real terms since 2010? When it comes to HPV and cervical cancer, is zero a small number?

Tim Harford investigates some of the numbers in the news.

Presenter: Tim Harford Producers: Nathan Gower and Bethan Ashmead Latham Series producer: Tom Colls Production co-ordinator: Katie Morrison Sound mix: Sarah Hockley Editor: Richard Vadon

Professor Sir David Spiegelhalter is one of the great communicators of probability and uncertainty.

His new book, The Art of Uncertainty, explains how to approach uncertainty, luck, probability and ignorance.

Tim Harford talks to Sir David about double yoked eggs, the Bay of Pigs, and his top tips for politicians who want to communicate evidence and uncertainty. Presenter: Tim Harford Series producer: Tom Colls Production co-ordinator: Katie Morrison Sound mix: John Scott Editor: Richard Vadon

Are childhood obesity rates going down? Do 35 million birds die every year in the UK after hitting windows? How much money could the Chancellor find by changing the debt rule? And Professor Sir David Spiegelhalter contemplates the probability of his own conception.

Tim Harford investigates some of the numbers in the news, and in life.

Presenter: Tim Harford Reporter: Charlotte MacDonald Producers: Bethan Ashmead Latham, Natasha Fernandes and Nathan Gower Series producer: Tom Colls Production co-ordinator: Katie Morrison Sound mix: Neil Churchill Editor: Richard Vadon