World Population May Actually Start Declining, Not Exploding

World Population May Actually Start Declining, Not Exploding
Kindergarten teachers play with children during an outdoor activity at the Ritan Park in Beijing Wednesday, Oct. 31, 2012. A government think tank says China should start phasing out its one-child policy immediately and allow two children for every family by 2015. It remains unclear whether Chinese leaders are ready to take that step. (AP Photo/Andy Wong)
Kindergarten teachers play with children during an outdoor activity at the Ritan Park in Beijing Wednesday, Oct. 31, 2012. A government think tank says China should start phasing out its one-child policy immediately and allow two children for every family by 2015. It remains unclear whether Chinese leaders are ready to take that step. (AP Photo/Andy Wong)

The world's seemingly relentless march toward overpopulation achieved a notable milestone in 2012: Somewhere on the planet, according to U.S. Census Bureau estimates, the 7 billionth living person came into existence.

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