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Graph of world population over the past 12,000 years . As a general rule, the confidence of estimates on historical world population decreases for the more distant past. Robust population data exist only for the last two or three centuries. Until the late 18th century, few governments had ever performed an accurate census.
The "Day of Seven Billion" was targeted by the United States Census Bureau to be in March 2012, [15] while the Population Division of the United Nations suggested 31 October 2011, [16] and the latter date was officially designated by the United Nations Population Fund (UNFPA) as the approximate day on which the world's population reached seven ...
Population of the world from 10,000 BC to 2000 AD (logarithmic scale) Estimating the ancestral population of anatomically modern humans, Colin McEvedy and Richard Jones chose bounds based on gorilla and chimpanzee population densities of 1/km 2 and 3-4/km 2, [1] respectively, then assumed that as Homo erectus moved up the food chain, they lost an order of magnitude in density.
The current world population growth is approximately 1.09%. [7] 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. [7] The world population more than tripled during the 20th century from about 1.65 billion in 1900 to 5.97 billion in 1999.
During the 20th century, the global population saw its greatest increase in known history, rising from about 1.6 billion in 1900 to over 6 billion in 2000 [102] as the whole world entered the early phases of what has come to be called the "demographic transition".
In the first scenario, where the world is expected to continue to develop economically in a similar way to the last 50 years, researchers estimate the global population could peak at 8.6 in 2050 ...
By RYAN GORMAN Earth could be teeming with more than 12 billion humans by the end of the century, a new study has revealed. The world's human population currently stands at about 7.5 billion. A ...
See file history for later upload dates. Source: based on file:World-Population-1800-2100.png, but converted to SVG using original data from U.N. 2010 projections and US Census Bureau historical estimates: Author: Tga.D based on Aetheling's work: Other versions: File:World-Population-1800-2100.png (PNG original)