U.N. analysts deploy many tools to project world’s population
Washington Post - USA
Conjuring up uncounted people by cross-referencing census data with surveys and other statistics is a common trick of the demographics trade, one of several methods used recently by researchers at the U.N. Population Division to arrive at their landmark population projection: 7 billion people inhabiting Earth on Oct. 31. (...) The United Nations is regarded in most quarters as the gold standard of population projection, but not everyone agrees with its estimates. ,…(24 October 2011)