The Living Planet Index reflects the overall health of our planet's biodiversity.
It works a bit like a stock exchange index, by tracking average changes in animal populations from around the world.
The Living Planet Index continues to show around a 30 per cent global decline since 1970
- The 30% decline means that on average, species population sizes were 30% smaller in 2008 than in 1970
- This decline is seen in all biomes
- And is highest in freshwater habitats
- But the trend is not the same all over the world
- Tropical and temperate regions show starkly divergent trends
- As do high-income and low- and middle-income countries