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From antiquity until the beginning of the Industrial Revolution, the global population grew very slowly, at about 0.04% per year. After about 1800, the growth rate accelerated to a peak of 2.1% annually during the 1962–1968 period, but since then, due to the worldwide collapse of the total fertility rate, it has slowed to 0.9% as of 2023. [2]
BRENDAN SMIALOWSKI,MANDEL NGAN/AFP via Getty Images. ... “The biggest problem the world will face in 20 years is population collapse. ... "Population collapse due to low birth rates is a much ...
[3] [4] [5] Conversely, other researchers have found that national birth registries data from 2022 and 2023 that cover half the world's population indicate that the 2022 UN projections overestimated fertility rates by 10 to 20% and are already outdated, that the global fertility rate has possibly already fallen below the sub-replacement ...
Based on this, the UN projected that the world population, 8 billion as of 2023, would peak around the year 2086 at about 10.4 billion, and then start a slow decline, assuming a continuing decrease in the global average fertility rate from 2.5 births per woman during the 2015–2020 period to 1.8 by the year 2100 (the medium-variant projection).
Economists and policymakers are expressing concern over the sharp decline in birth rates in many countries, but the UN predicts that the world's population will continue to grow until the mid ...
The tech executive, who has 11 known children, has for years been urging people to reproduce, warning of a global population collapse if they don't. "Just have kids one way or another or humanity ...
By the year 2100, the median population projection is at 11 billion people, while the maximum population projection is close to 16 billion people. The lowest projection for 2100 is around 7 billion, and this decline from present levels is primarily attributed to "rapid development and investment in education", with those projections associated ...
The population of early humans dwindled to around 1,280 individuals during a time of dramatic climate change and remained that small for about 117,000 years, the study said.