Population decline
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Population decline, also known as depopulation, is a reduction in a human population size. Earth's total human population continues to grow, as it has done throughout history, but projections suggest
An abandoned house in Yubari district, Hokkaido, an area which has suffered sharp population decline
Ukrainian refugees entering Romania, 5 March 2022
Thousands of abandoned villages are scattered across Russia.
Stamp depicting Russian soldier killed in Ukraine. The war in that country has further exacerbated Russia's demographic crisis.
Human extinction
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Human extinction, or omnicide, refers to the possible ending of the human species, either by population decline due to singular natural events—for example, space irradiation, asteroid impact, or large
Population decline
…Holocene extinction Human extinction Human overpopulation…
Nuclear war is an often predicted cause of the extinction of humankind.
Castle Romeo nuclear test on Bikini Atoll
Placard against omnicide, at Extinction Rebellion (2018)