Nairobi's high population spawns slums

A section of Kibera slums in Nairobi. [David Njaaga,Standard]

Size versus quality. Fast-growing slums, failed sewer systems, poor water supply and poor road network are some of the consequences of Nairobi’s population of 6.5 million.

Yet, in contrast, Japan’s capital Tokyo, despite being the most densely populated city and the world’s largest metropolitan with roughly 38 million, has stunning houses on remarkably narrow pieces of land.