Author: Richard Kahle

  • Population and Consumption

    The air is full of carbon dioxide and other pollutants;
    The ocean is emptying;
    We have observed record setting harvests over the last few years, and yet chronic hunger persists and has recently been increasing;
    The planet is experiencing the 6th great extinction;

    All of these are the result of human activity.

    This evidence illustrates that we have not responsibly managed, neither through governance nor technology, our environmental resources. In the absence of finding a sustainable relationship with our ecosystem, we might conclude that we have reached Earth’s carrying capacity.

    read more

  • Population and Consumption

    The air is full of carbon dioxide and other pollutants;
    The ocean is emptying;
    We have observed record setting harvests over the last few years, and yet chronic hunger persists and has recently been increasing;
    The planet is experiencing the 6th great extinction;

    All of these are the result of human activity.

    This evidence illustrates that we have not responsibly managed, neither through governance nor technology, our environmental resources. In the absence of finding a sustainable relationship with our ecosystem, we might conclude that we have reached Earth’s carrying capacity.

    read more

  • The 6th Extinction and Protected Areas

    The 6th Extinction
    A mass extinction is under way. Human activity, not natural phenomenon, is the difference between this extinction and the five previous big extinctions that have occurred in Earth’s history. The current extinction is driven by habitat loss, overexploitation of species, invasive species and pollution. All of these, the result of humans.

    The current extinction rate is between 1,000 and 10,000 times higher than the natural rate. (International Union for Conservation of Nature, IUCN) Current estimates put the extinction rate at roughly 30,000 species per year which is about three per hour. By the end of this century, about half of Earth’s plant species could be gone. (Pitman and Jorgensen, 2002) For an assessment of global biodiversity, refer to the IUCN Red List.

    read more

  • The 6th Extinction and Protected Areas

    The 6th Extinction
    A mass extinction is under way. Human activity, not natural phenomenon, is the difference between this extinction and the five previous big extinctions that have occurred in Earth’s history. The current extinction is driven by habitat loss, overexploitation of species, invasive species and pollution. All of these, the result of humans.

    The current extinction rate is between 1,000 and 10,000 times higher than the natural rate. (International Union for Conservation of Nature, IUCN) Current estimates put the extinction rate at roughly 30,000 species per year which is about three per hour. By the end of this century, about half of Earth’s plant species could be gone. (Pitman and Jorgensen, 2002) For an assessment of global biodiversity, refer to the IUCN Red List.

    read more