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population: Quick Facts

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Photos and Videos

Line graph showing world population growth from 1700 to 2000 with a steep rise after 1950, followed by three projection scenarios for 2000 to 2100: high, medium, and low, reaching between 7 and 14 billion.
Line graph showing projected population growth from 1950 to 2050 for the world, less developed countries, and more developed countries, with high, medium, and low estimate variants. The world and less developed countries show steep increases, while more developed countries grow slowly.
Is overpopulation a problem?
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Know the factors that favor higher production of baby boys than girls which result in skewed sex ratio with human populations
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Key People

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Conrad Taeuber
American sociologist
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Irene Barnes Taeuber
American sociologist
Charles Darwin
Charles Darwin
British naturalist
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Charles Elton
English biologist
Vavilov inspecting citrus trees at Maykop, Russian S.F.S.R., in 1935
Nikolai Vavilov
Russian geneticist
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Kingsley Davis
American sociologist
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Richard Cantillon
Irish economist
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Sir Alexander Carr-Saunders
British educator
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Corrado Gini
Italian statistician

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