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'Mass Extinction Of Wildlife' Is On Its Way, And It's All Humans' Fault

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LONDON — Global wildlife populations have fallen an average of 58 per cent from 1970 levels, with human activity reducing the numbers of elephants in Tanzania, maned wolves in Brazil, salamanders in the United States and orcas in the waters of Europe, researchers say.

Deforestation, pollution, overfishing and the illegal wildlife trade, together with climate change, "are pushing species populations to the edge,'' according to the Living Planet report released Thursday by WWF and the Zoological Society of London.

"For the first time since the demise of the dinosaurs 65 million years ago, we face a global mass extinction of wildlife,'' said Mike Barrett, director of science and policy at WWF-UK. "We ignore the decline of other species at our peril — for they are the barometer that reveals our impact on the world that sustains us.''

orca whales
Human activity has reduced the numbers of orcas in the waters of Europe, researchers say. (Photo: Getty Images)

The assessment predicts that by 2020, populations of vertebrate species could have fallen by 67 per cent from 1970 levels unless action is taken to reverse the damaging impacts of human activity.

One of the actions pushing the decline is the growing number of humans, which is driving overfishing, hunting and the destruction of habitats. The report detailed the strain that agriculture places on freshwater systems.

"Human behaviour continues to drive the decline of wildlife populations globally, with particular impact on freshwater habitats,'' said Ken Norris, director of science at ZSL. "Importantly, however, these are declines — they are not yet extinctions — and this should be a wake-up call to marshal efforts to promote the recovery of these populations.''

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