Main content
Species in Decline?
The Living Planet Index claims that species populations have dropped 50% in the last 40 years. We look at what the figure means and how it was calculated.
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.
(Photo: Male Royal Bengal tiger staring towards the camera from inside the jungle. Credit: Shutterstock)
Last on
Mon 13 Oct 201408:50GMT
BBC World Service Online
More episodes
Broadcasts
- Fri 10 Oct 201418:50GMTBBC World Service Online
- Sun 12 Oct 201422:50GMTBBC World Service Online
- Mon 13 Oct 201401:50GMTBBC World Service Online
- Mon 13 Oct 201408:50GMTBBC World Service Online
Unlock the history and truth behind the data with The OU
Podcast
![]()
More or Less
Tim Harford explains the numbers and statistics used in everyday life



