Planet on the Brink: Human Activity Killing the Planet's Life-Supporting Systems
"Among the report's findings is a dramatic loss in biodiversity. Its Living Planet Index, managed by the Zoological Society of London (ZSL) and based on over 10,000 populations of over 3,000 species, shows a 52 percent decline in global wildlife between 1970 and 2010. And that's a trend that "shows no sign of slowing down"."
