Tim Harford and the More or Less team try to make sense of the statistics which surround us. From BBC Radio 4
http://www.bbc.co.uk/programmes/p02nrss1
Species in Decline?
The coverage of the Living Planet Index and its claim that species populations have dropped 50% in the last 40 years aroused much suspicion among More Or Less listeners. The team looks at what the figure means and how it was calculated. This programme was first broadcast on the BBC World Service.