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Science 14 November 2003:
Vol. 302. no. 5648, pp. 1172 - 1175
DOI: 10.1126/science.1088665
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Human Population: The Next Half Century

Joel E. Cohen

By 2050, the human population will probably be larger by 2 to 4 billion people, more slowly growing (declining in the more developed regions), more urban, especially in less developed regions, and older than in the 20th century. Two major demographic uncertainties in the next 50 years concern international migration and the structure of families. Economies, nonhuman environments, and cultures (including values, religions, and politics) strongly influence demographic changes. Hence, human choices, individual and collective, will have demographic effects, intentional or otherwise.

Rockefeller University and Columbia University, 1230 New York Avenue, Box20, New York, NY 10021, USA.

E-mail: cohen{at}rockefeller.edu

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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Incidence of first-contact psychosis in Sao Paulo, Brazil.
P. R. MENEZES, M. SCAZUFCA, G. F. BUSATTO, L. M. S. COUTINHO, P. K. McGUIRE, and R. M. MURRAY (2007)
The British Journal of Psychiatry 191, s102-s106
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Soil Science and the Carbon Civilization.
R. Lal (2007)
Soil Sci. Soc. Am. J. 71, 1425-1437
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Biodiversity and extinction: species and people.
K. J. Gaston (2005)
Progress in Physical Geography 29, 239-247
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Moving toward whole-genome analysis: A technology perspective.
T. Kreiner and K. T. Buck (2005)
Am. J. Health Syst. Pharm. 62, 296-305
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Prospects for Biodiversity.
M. Jenkins (2003)
Science 302, 1175-1177
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Science. ISSN 0036-8075 (print), 1095-9203 (online)