Megacities in the Future...

In Tom Friedmans novel, Hot, Flat and Crowded, he cites a statistic by the UN, claiming there will be 26 megacities in 2016. A city qualifies for its megacity status by having over 10 million inhabitants. Not a single city in the United States except New York city boasts this number. With this many people in cities by 2015, think about how many there will be in 2030, 2050, and so on. The number is just absurd. Population growth may be the new global warming in a few years.