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- UN Report Finds the Number of Megacities Has Tripled Since 1990 Wed, 8 Oct 14, 4:00pmA United Nations report has found that the number of megacities in the world has increased almost three-fold in the past 24 years. A megacity is defined as an urban area with over 10 million inhabitants—New York City formed...
- UN Report Finds the Number of Megacities Has Tripled in Since 1990 Wed, 8 Oct 14, 4:00pmA United Nations report has found that the number of megacities in the world has increased almost three-fold in the past 24 years. A megacity is defined as an urban area with over 10 million inhabitants—New York City formed...