World population has doubled (100% increase) in 40 years from 1959 (3 billion) to 1999 (6 billion). [32] In that year, the population of Western Han was recorded as 57,671,400 individuals in 12,366,470 households, decreasing to 47,566,772 individuals in 9,348,227 households by AD 146, towards the End of the Han Dynasty. [80], According to the World Health Organization, the global average life expectancy is 71.4 years as of 2015, with women living an average of 74 years and men approximately 69 years. [15] Antarctica only has a very small, fluctuating population of about 1200 people based mainly in polar science stations. Antoni van Leeuwenhoek computed 13.4 billion in 1679. [186] Thus, there is a significant margin of error when estimating ancient global populations. [170][171], A July 2017 study published in Environmental Research Letters argued that the most significant way individuals could mitigate their own carbon footprint is to have fewer children, followed by living without a vehicle, foregoing air travel, and adopting a plant-based diet. View the full tabulated data. The pre-agrarian period refers to the era when humans were starting to make their way up the pyramid of life. Resource demands are expected to ease as population growth declines, but it is unclear whether mass food wastage and rising living standards in developing countries will once again create resource shortages. [26] The population of Europe was more than 70 million in 1340. Malthus wrote the essay to refute what he considered the unattainable utopian ideas of William Godwin and Marquis de Condorcet, as presented in Political Justice and The Future Progress of the Human Mind. Fewer than 15,000 individuals, according to the, An approximation based on figures from different sources as listed at the US Census Bureau's, Some population control programs, such as China's. Robust population data only exist for the last two or three centuries. You can search on a first name or a last name, but not on a combination of first name and last name. All on this page, one by one. Over the 8,000-year period up to 1 A.D. it grew to 200 million (some estimate 300 million or even 600, suggesting how imprecise population estimates of early historical periods can be), with a growth rate of under 0.05% per year. The United Nations and the US Census Bureau both give different estimates – according to the UN, the world population reached seven billion in late 2011,[109] while the USCB asserted that this occurred in March 2012. "[167] African wildlife populations are declining significantly as growing human populations encroach on protected ecosystems, such as the Serengeti. In an environment with unlimited natural resources, population size grows exponentially. If this trend continues, the rate of growth may diminish to zero by 2050, concurrent with a world population plateau of 9.2 billion. Figures include the former Soviet countries in Europe. A number of factors contributed to this increase, including the lessening of the mortality rate in many countries by improved sanitation and medical advances, and a massive increa… [75][needs update], As of 2012, the global sex ratio is approximately 1.01 males to 1 female. Such estimates can only be rough approximations; as even modern population estimates are subject to uncertainty of around 3% to 5%. [176] Paul Ehrlich also advocates making "modern contraception and back-up abortion available to all and give women full equal rights, pay and opportunities with men," noting that it could possibly "lead to a low enough total fertility rate that the needed shrinkage of population would follow. when the ancestors of Homo sapiens appeared, or several million years ago when hominids were present), taking into account that all population data are a rough estimate, and assuming a constant growth rate applied to each period up to modern times, it has been estimated that a total of approximately 106 billion people have been born since the dawn of the human species, making the population currently alive roughly 6% of all people who have ever lived on planet Earth. [155] In 2009, the UK government's chief scientific advisor, Professor John Beddington, warned that growing populations, falling energy reserves and food shortages would create a "perfect storm" of shortages of food, water, and energy by 2030. On this page you can see every single one of us. [151][152] However, oil prices then fell sharply. This is the oldest date for which anyone has even a reasonable guess as to the population. ", "Victorian Medicine – From Fluke to Theory", "Vladimir Putin vows to reverse Russian population decline", "Russia's Population Decline Said To Have 'Stopped, "Reintegrating India with the World Economy", "The World Factbook – Central Intelligence Agency", "From Traitors to Heroes: 100 Years of Mexican Migration Policies", "Population and Housing Census: Mexico 2010", "U.S. Census Bureau – World POPClock Projection", "Population seven billion: UN sets out challenges", "7 billion people is a 'serious challenge", "World Population Prospects, the 2008 Revision – Frequently Asked Questions", "World Health Statistics 2016: Monitoring health for the SDGs Annex B: tables of health statistics by country, WHO region and globally", "Sex-ratio imbalance in Asia: Trends, consequences and policy responses", "General debate on national experience in population matters: adolescents and youth", "Global weight gain more damaging than rising numbers", "What It Will Take to 'Graduate' 1.2 Billion People Out of Extreme Poverty". [66], It is estimated that the world population reached one billion for the first time in 1804. This figure is up from 33.5% back in 2016, a substantial increase in a few short years. people in the world People in the world calculation Currently, the population of the world is increased by 2.4 people every second. Tweet. Most scholars believe that, without the Revolution, there would be greater levels of famine and malnutrition than the UN presently documents. [74] In June 2012, British researchers calculated the total weight of Earth's human population as approximately 287 million tonnes, with the average person weighing around 62 kilograms (137 lb). [8] The UN Department of Economics and Social Affairs projects between 9-10 billion people by 2050, and gives an 80% confidence interval of 10-12 billion by the end of the 21st century. Obviously, the UN data is based on estimates and can't be 100% accurate, so in all honesty nobody can possibly say with any degree of certainty on which day world population reached 7 billion (or any other exact number), let alone at what time. The rate of increase has nearly halved since then, and will continue to decline in the coming years. People living on Earth. [51], Population growth in the West became more rapid after the introduction of vaccination and other improvements in medicine and sanitation. The current average population increase is estimated at 81 million people per year. Just over a quarter of the population is under 15 years old. Nature 397.6715 (1999): 101. [77] The world's largest religion is Christianity, whose adherents account for 31.4% of the global population;[87] Islam is the second-largest religion, accounting for 24.1%, and Hinduism the third, accounting for 13.8%. [177], Other academicians and public figures have pointed to the role of agriculture and agricultural productivity of increasing human carrying capacity, which results in population overshoot, as with any other species when their food supply experiences an increase, which in turn results in resource depletion and mass poverty and starvation in the case of humans. [How Do You Count 7 Billion People?] Haub also stated that "life expectancy at birth probably averaged only about ten years for most of human history",[184] which is not to be mistaken for the life expectancy after reaching adulthood. Population in the world is currently (2020) growing at a rate of around 1.05% per year (down from 1.08% in 2019, 1.10% in 2018, and 1.12% in 2017). While no one knows for sure how the world population will grow in the years to come, it’s expanding at a fast rate. Growth ( i.e 107 billion Biraben ( 1980 ), `` an Essay Concerning Mankind 's Evolution '' an more. 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