The growth of Megacities
In 1950, there were two mega-cities with 10 million or more inhabitants. By 2005, their number had increased to 20 and it is projected that there will be 22 mega-cities in 2015.
Developing countries will have 17 of these 22 mega-cities in 2015.
Developing countries will have 17 of these 22 mega-cities in 2015.