The 100 million city: is 21st century urbanisation out of control?

The 100 million city: is 21st century urbanisation out of control?
- Latest UN projections expect the world's population to grow by 2.9 billion – equal to another China and India – in the next 33 years, and possibly by a further 3 billion by the end of the century. By then, says the UN, humanity is expected to have developed into an almost exclusively urban species with ...