The most obvious issue with seven billion of us here is our profligate consumption of dwindling natural resources and the waste and pollution generated in the process. A recent joint study by the World Wildlife Fund (WWF) and the Worldwatch Institute found that humans now use 20 percent more renewable resources than can be replaced each year. And while many would say that climate change has eclipsed overpopulation as the major issue of the day, others counter that atmospheric temperatures wouldn’t be growing nearly as much if there weren’t so darn many of us burning so many fossil fuels.
Human population numbers are predicted to trend downward around the world within a few generations. This so-called “demographic transition” is already underway in the U.S. and other developed countries where fertility rates have dropped due to lower infant mortality, increased urbanization and wider access to contraceptives. Given that fertility rates drop as countries develop, and that lesser developed countries have begun to leapfrog ahead in their urbanization and adoption of technology, the United Nations Population Fund predicts that population may peak in the late 21st century and then begin to shrink.
CONTACTS: United Nations Population Fund.
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