Global wildlife populations down by half since 1970

Oh man. Can this be? In my lifetime, "GENEVA - The world populations of fish, birds, mammals, amphibians and reptiles fell overall by 52 per cent between 1970 and 2010, far faster than previously thought, the World Wildlife Fund said on Tuesday."
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"Preserving nature was not just about protecting wild places but also about safeguarding the future of humanity, "indeed, our very survival."
"The report also measured how close the planet is to nine so-called "planetary boundaries", thresholds of "potentially catastrophic changes to life as we know it".

Three such thresholds have already been crossed - biodiversity, carbon dioxide levels and nitrogen pollution from fertilisers. Two more were in danger of being breached - ocean acidification and phosphorus levels in freshwater. "Given the pace and scale of change, we can no longer exclude the possibility of reaching critical tipping points that could abruptly and irreversibly change living conditions on Earth," the report said.

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