If the world’s human population continues to rise at its current rate, the planet will increase the numbers of threatened species at least 7 percent worldwide in the next 20 years and twice that many by the year 2050.
In a recent model of the impact human population growth has on biological diversity, Ohio State University anthropologist Jeffrey McKee and his colleagues warn that the United States alone will add at least 10 additional species to the “threatened” list within 50 years.
The prediction, carried in a paper published in the journal Biological Conservation, arose from an effort by McKee to separate the effects of the numbers of humans from questions about how they use – or abuse – the environment.
Jeffrey McKee | Ohio State University
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