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Fertility rate requirement 2025
May 7 , 2025
11 hrs 0 min
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- The fertility rate should be at least 2.7 children per woman in the developed countries, to prevent human extinction.
- The conventional replacement level fertility (RLF) of 2.1 children per woman is simply not enough in many parts of the world.
- However, a female-biased birth ratio, with more females than males born, reduces the extinction risk, helping more lineages survive over time.
- The world has experienced its peak growth rate in the years 1960s and the global population has continued to increase and is projected to reach 8.5 billion in 2030.
- At least 40 per cent of more than 6,700 spoken languages in the world threatened to disappear within the next 100 years.
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