Kenya: Building Cities for a Bulging World

[The Star]Only about 150 million people lived cities in 1900. By 2000, it was 2.8 billion, a 19-fold increase. In 2008, more than half of the global population, 3.3 billion lived in cities, making our kind, for the first time, Homo urbanus - an urban species. By 2030, 5 billion people will live in cities.