Living Planet Report
The results of the LPI are also published biennially in the Living Planet Report, which acts as a tool to communicate global biodiversity trends to a wide audience.
The 2010 edition of WWF’s Living Planet Report shows populations of tropical species are plummeting and humanity’s demands on natural resources are sky-rocketing to 50 per cent more than the earth can sustain. The biennial report, produced in collaboration with the Zoological Society of London and the Global Footprint Network, uses the global Living Planet Index as a measure of the health of almost 8,000 populations of more than 2,500 species.
The good news is that temperate species have increased by 29 per cent over the last 40 years. This is probably indicative of a gradual recovery of some systems subsequent to a long period of degradation and decline. Overall the global Index shows a decrease by 30 per cent since 1970, with the tropics hardest hit showing a 60 per cent decline in less than 40 years.