07/06/2010 05:12 am ET Updated May 25, 2011

Megacities Of The World: A Glimpse Of How We'll Live Tomorrow

By 2050, almost 70 percent of the world's estimated 10 billion inhabitants - or more than the number of people living today - will be part of massive urban networks, according to the Population Division of the United Nations' Department of Economic and Social Affairs.

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