population decline
Antinatalism
Biodiversity loss
Birth dearth
Church of Euthanasia
History of Easter Island#Destruction of society and population
Human extinction
Human overpopulation
Human population planning
Negative Population Growth
Political demography
Population cycle
Population growth
Rural flight
Societal collapse
Sub-replacement fertility
Zero population growth
Case studies:
Aging of Europe
Aging of Japan
Aging of South Korea
Aging of the United States
Empty diagonal
Russian Cross
List of sovereign states and dependencies by total fertility rate
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