05/09/2011 01:55 pm ET | Updated Jul 09, 2011

United Nation Predicts 10 Billion People By 2100

The world's demographers this week increased their estimates of the world's population through the coming century. We are now on track to hit 10 billion people by 2100. Today, humanity produces enough food to feed everyone but, because of the way we distribute it, there are still a billion hungry.

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