
World population outlook: Explosion or implosion?
Author: Henri Leridon Could world population growth stop by 2050 or even decrease before then? Drawing on United Nations projections, Henri Leridon examines the conditions for such a reversal, notably the crises in mortality and declines in fertility that it would imply, as well as their plausibility. The world population was 7.7 billion in 2019, and the United Nations projects 9.7 billion in its medium-variant scenario, which ...