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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).
In a piece for the Financial Times (10 August 2018) titled "Why drink is the secret to humanity's success", Dunbar mentioned two more numbers: an inner core of about 5 people to whom we devote about 40 percent of our available social time and 10 more people to whom we devote another 20 percent. All in all, we devote about two-thirds of our time ...
In 2012, opinion polls conducted across 20 countries found that over 14% of people believe the world will end in their lifetime, with percentages ranging from 6% of people in France to 22% in the United States and Turkey. Belief in the apocalypse is most prevalent in people with lower levels of education, lower household incomes, and those ...
Population growth rate (2023, Our World in Data) [1] Absolute increase in global human population per year [2] Population growth is the increase in the number of people in a population or dispersed group. The global population has grown from 1 billion in 1800 to 8.2 billion in 2025. [3]
Researchers found that people worldwide live 9.6 years longer than they are healthy — and in the U.S. the gap is more than 12 years. The U.S. has the biggest lifespan-health span gap in the world.
Now, one theorist warns that the human civilization of 8.2 billion people is at a critical junction: teetering between what he forecasts will be authoritarian collapse and superabundance.
1943. Overall life expectancy: 63.3 Women: 64.4 Men: 62.4 Life expectancy dropped almost three years from 1942 to 1943. Though World War II may have driven a decline, a change in how life ...
The United Nations estimated an annual population increase of 1.14% for the year of 2000. [15] The current world population growth is approximately 1.09%. [8] People under 15 years of age made up over a quarter of the world population (25.18%), and people age 65 and over made up nearly ten percent (9.69%) in 2021. [8]