World Population: 7 billion and counting...

A crowded world hits 7 billion people

Newborn baby Isaac Davies who was born at 12.46am in the James Cook Hospital in Middlesbrough, northern England, October 31, 2011.  REUTERS/Nigel Roddis

With the world's population more than doubling over the last half century, basics like food and water are under more strain than ever, and providing for an additional 2-3 billion people in the next 50 years is a serious worry.  Full Article | Video