The world’s fastest growing cities | World Economic Forum
J’ai un peu honte de signaler le WEF mais c’est pour la référence
By 2025, the Chinese city of Shenzhen will be home to more than 12 million people. In 1950, it was a fishing village with only 3,148 citizens.
In 1960, the only city in sub-Saharan Africa with a population of over 1 million people was Johannesburg. Ten years later, there were four. By 2010, that number had sky-rocketed to 33 cities.
Worldwide, urban areas are expanding. It is estimated that by 2050, 70% of the world’s population will be living in urban areas.