Crowded World

This is an excerpt from "Hot, Flat and Crowded" :

So if you think the world feels crowded now, just wait a few decades. In 1800, London was the largest city in the world with 1 million people. By 1960, there were 111 cities with more than 1 million people. By 1995 there were 280,and today there are over 300. The number of megacities in the world has climbed from 5 in 1975 to 14 in 1995 and is expected to reach 26 by 2015, according to the UN. Needless to say,  these exploding populations are rapidly overwhelming infrastructure in this megacities, 19 million people in Mumbai alone, as well as driving loss of arable land, deforestation, overfishing, water shortages, and pollution.

This is very alarming considering that the population increase is supposed to take place mostly in poor countries which means there will be more people starving, diseases and probably war/conflicts.  Overpopulation is definitely not easy to deal with for any government, but at least we can try to keep the world in "good shape" so that when the future generations can have a decent life,etc.