BBC Radio 4 - More or Less

Fishy numbers?

Will there be more plastic than fish in the sea by 2050?

Women taking selfies for more than five hours a day and other junk adverstising surveys.

Should research described as "misleading" and "not scientific" have been published?

Tim Harford investigates whether e-cigarettes harm people's chances of quitting.

Should research described as 'misleading; and 'not scientific' have been published?

Do e-cigarettes harm your chances of quitting smoking? Tim Harford looks at the evidence.

Are there problems with the way we judge the harms from alcohol? Tim Harford finds out.

Have refugees caused a gender imbalance in Sweden? Tim Harford finds out.

Have refugees caused a gender imbalance in Sweden's teenage population?

Are there problems with the way we judge the harms from alcohol? Tim Harford finds out.