A global fertility collapse could be worse than the Black Deat The collapse could take 50–60 years instead of 7, and that countries with a total fertility rate (TFR) of 1.0–1.1 would lose 30–40% of their population. This would be worse than the 30–50% population loss in the hardest-hit European countries during the Black Death.
Global Population Collapse Takes Women and Children First | NextBigFuture.com
Per this, 80% of the world’s population now lives in countries with a lower than replacement level birth rate. Peter Zeihan had previously pegged that at 75%.
Most countries will be depopulating, but some, such as Nigeria, continue to have high fertility rates. But that may quickly change as girls and women become better educated and have better economic choices (this change has occurred in other countries).
