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1 janvier 2020
- ISIDORE Id: 10670/1.821b09...
- hal: hal-04625729
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https://hal.science/hal-02464577v1
http://creativecommons.org/licenses/by-nd/ , info:eu-repo/semantics/OpenAccess
Mots-clés
population mondiale projections de population Nations unies Club de Rome Scénario catastropheSujets proches
Populations, Human Human populations Population growth Human population Demography DemographicsCiter ce document
Henri Leridon, « World population outlook: Explosion or implosion ? », HAL SHS (Sciences de l’Homme et de la Société), ID : 10670/1.821b09...
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The world population was 7.7 billion in 2019, and the United Nations projects 9.7 billion in its medium-variant scenario, which assumes that world fertility continues to decline (from 2.5 children per woman in 2019 to 2.2 in 2050), and only 8.9 billion in its low-variant scenario in which fertility would decline even faster. Unless the entire world is hit by severe disasters on an unprecedented scale, it is difficult to imagine a world population much below 9 billion by 2050.
