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Historical episodes of short-term human population decline have been common and have been caused by several factors. High mortality rates caused by: Disease , for example, the Black Death that devastated Europe in the 14th and 17th centuries, the arrival of Old World diseases in the Americas during European colonization, and the Spanish flu ...
Decline in innovation. A falling population also lowers the rate of innovation, since change tends to come from younger workers and entrepreneurs. [10] Strain on mental health. Population decline may harm a population's mental health (or morale) if it causes permanent recession and a concomitant decline in basic services and infrastructure. [12]
New data predicts population decline after 2080.
Modern proponents of the concept have suggested that overpopulation, population growth and overconsumption are interdependent [25] [26] [27] and collectively are the primary drivers of human-caused environmental problems such as climate change [28] [29] and biodiversity loss.
By 2100, the population is expected to have grown by about 9.7% above 2022 levels. But changes to immigration levels between now and 2100 may swing U.S. population numbers by up to 209 million people.
China’s population, however, has been declining.“China, in the last couple of years, has experienced a very fast, and very significant, further decline in the number of children born,” said ...
Between 1939 and 1959, the rural population declined by 21.3 million, while that of urban centers increased by 39.4 million. Of this dramatic shift in population, rural flight accounts for more than 60% of the change. [40] Generally, most rural migrants tended to settle in cities and towns within their district. [39]
Globally, the population of 8.2 billion people is still growing, with the U.N. projecting it will reach 10.3 billion in roughly 60 years and then start to decline.