Population Bulletin: World Population Beyond Six Billion

A publication of The Population Reference Bureau dealing with questions regarding world population increase:"In the history of the world, no century can match the population growth of the one coming to a close.   We entered the 20^th century with less than 2 billion people and wee will leave it with more than 6 billion.  What is the population outlook beyond 6 billion?  The momentum created by the unprecedented growth of the last century will carry us toward seventh billion probably within the next 14 years.  Nearly all this increase will occur in less developed regions.  Beyond that our vision blurs."

(Population Action International, Washington DC, USA  http://www.population.org/)