Catastrophic 73% decline in the average size of global wildlife populations in just 50 years reveals a ‘system in peril’

That is the title of a press release from a recently released report by the Wold Wildlife Fund.

WWF’s flagship Living Planet Report details sharp declines in monitored wildlife populations with the steepest drops recorded in Latin America and the Caribbean (95%), Africa (76%) and Asia–Pacific (60%), followed by North America (39%) and Europe and Central Asia (35%).

The press release continued:

Habitat loss and degradation and overharvesting, driven primarily by our global food system are the dominant threats to wildlife populations around the world, followed by invasive species, disease and climate change.

Translation: We are way far past any remotely sustainable human population. But we are no longer allowed to say that.

The full report can be downloaded.

They have created a nice web site to present the basic information for those with short attention spans.

The site states:

It’s not too late to save our living planet, but it will take some big changes. As well as making much greater efforts to conserve and restore nature, we need to tackle the causes of its destruction by transforming our food, energy and finance systems.

Since the late 1990’s, there is a marketing strategy in use by organizations working in conservation and global warming. You always have to be upbeat and say “it’s not too late” with the goal of not making it look hopeless.

Well, I have been working in the field of conservation for about a quarter of a century and it became very clear to me, very fast, that it is hopeless without some massive reduction in the stressors (i.e. human population), but my understanding that the situation is hopeless, based on the facts, based on the reality of the situation, in no way diminishes my drive and efforts to push for change.


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  1. Patricia R Ogden Avatar
    Patricia R Ogden

    A while ago I read an article in which calculations the author made said that in order to save the planet we needed to reestablish a population and consumption levels of the 1950’s. It’s inconceivable, really. The question is, what’s the lights-out timeline?

  2. Jeff Hoffman Avatar
    Jeff Hoffman

    Humans are so grossly overpopulated that even most advocates of lowering population refuse to acknowledge how bad it is. After about 200,000 years as hunter-gatherers, humans reached an ecological equilibrium of population at 5-10 million people GLOBALLY. We now have cities with more people than that. Any more than this natural population level is ecologically harmful. We’re now so grossly overpopulated that overpopulation negatively affects almost everything, not just the environment.

    As to whether it’s too late to save the Earth and the life here, it’s definitely not looking good, and my realistic expectations could hardly be lower. However, as Jonathan Ratner said, we should never give up hope unless something is physically impossible. So we fight on, we do our best, and we let things play out as they will.

    1. Jonathan Ratner Avatar
      Jonathan Ratner

      Jeff,

    2. Jonathan Ratner Avatar
      Jonathan Ratner

      Jeff,

      I have spent a bit of time thinking about this and after a review of population size that caused the extinction of megafauna in various parts of the world and destroyed the soils of drier areas such as the middle east and then factoring in advances in technology and potential growth rates I came to about the same number – somewhere in the 5-10 million globally.

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Jonathan Ratner

Jonathan Ratner has been in the trenches of public lands conservation for nearly 25 years. He started out doing forest carnivore work for the Forest Service, BLM, and the Inter-agency Grizzly Bear Study Team, with some Wilderness Rangering on the Pinedale Ranger District. That work lead him directly to deal with the gross corruption within the federal agencies' range program.

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