The results are even more severe in South and Central America, and the Caribbean, where populations have dropped an astounding 89 per cent.
This is so great that many scientists believe we are entering a new geological epoch, the Anthropocene.
In the years since man first walked on the moon, his footprint back on back on earth has polluted three-quarters of the planet, and caused the wildlife population to plummet by a catastrophic 60 per cent, an global report warns today.
"Unlike population declines, extinctions are irreversible". And the number of polar bears is expected to decline by 30 percent by 2050 as global warming causes Arctic ice to melt, making their habitats increasingly precarious.
A 2C world would be a death sentence, a major United Nations report concluded last month. "But some conservation efforts are working everyone may not agree, but India's Project Tiger is one example".
It blamed exploding human consumption, climate change, pollution, farming and deforestation.
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In looking for answers, conservationists are turning to climate change for inspiration.
"One was the realisation that climate change was unsafe for the economy and society, not just polar bears", he said. 'There is a limit to what we can destroy, and there is a minimum amount of nature that we need to preserve, ' Lambertini added, noting in the study that the worldwide community has a 'rapidly closing window for action'.
"There can not be a healthy, happy and prosperous future for people on a planet with a destabilized climate, depleted oceans and rivers, degraded land and empty forests, all stripped of biodiversity, the web of life that sustains us all", WWF Director General Marco Lambertin wrote in the report, which included contributions from more than 50 experts from around the world.
WWF regards the directive as "one of the EU's most progressive pieces of environmental legislation to date", saying it plays a vital role in protecting Europe's rivers, lakes, groundwater and wetlands from overexploitation. At present, the 1993 Convention on Biological Diversity is the key multilateral treaty on biodiversity conservation.
"The CBD is failing", he told AFP.
Globally, WWF is taking the window of opportunity between now to 2020 (when the Aichi targets under the Convention on Biological Diversity and the Environmental Goals of the 2030 agenda culminate and a new comprehensive framework for the future is set) to shape a positive vision for nature and for the planet by collaborating with a consortium of nearly 40 universities, conservation organizations and intergovernmental organizations to launch the research initiative, Bending the Curve of Biodiversity Loss.