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http://en.wikipedia.org/wiki/World_population http://en.wikipedia.org/wiki/World_population <- Anyone know the reason for the UN's low and medium estimates havi

http://en.wikipedia.org/wiki/World_population http://en.wikipedia.org/wiki/World_population <- Anyone know the reason for the UN's low and medium estimates having serious downturns in population in the next century? Is it because of lowering child-birth rates, or because of expectations of resources/diseases, etc...?

showerst 17y ago
According to the PDF: http://www.un.org/esa/population/publications/longrange2/WorldPop2300final.pdf http://www.un.org/esa/population/publications/longrange2/Wor... it's virtually all due to changes in fertility. As countries grow in wealth and life expectancy, the number of children per woman tends to drop off drastically.
ganley 17y ago
It's due to zombie apocalypse. Duh.