The numbers speak for themselves. In 1800, only three percent of the world’s population lived in cities. 2007 will mark a unique milestone in human history: For the first time ever, more people on earth will live and work in cities than in rural areas. The UN estimates that this share will climb to 61 percent by 2030, pushing up urban population from three billion today to a total of five billion. And only four of the twenty biggest megacities with populations over 10 million will be in industrial nations; the others will be in threshold and developing countries.
(Paul Saffo – INSEAD)
http://knowledge.insead.edu/contents/Aneweraforinnovations090716.cfm?vid=270
SIEMENS Megatcity Challenge Study
http://w1.siemens.com/en/megacities.htm
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