%PDF-1.6 %���� [128] Some analysts have questioned the sustainability of further world population growth, highlighting the growing pressures on the environment,[129] global food supplies, and energy resources.[130][131][132]. Asian families at the crossroads: A meeting of east, west, tradition, modernity, and gender, Gender Analysis of the Policy Responses to High Oil Prices: A Case Study of South Africa, Couples' joint decision-making: the construction and validation of a key proxy for understanding gender relations in contemporary families, Universal women's rights since 1970: The centrality of autonomy and agency, Promoting gender equality in the context of Nigerian cultural and religious expression: beyond increasing female access to education, Gender equity and women's contraception use, Feminizing leadership in Arab societies: the perspectives of Omani female leaders. Population by Gender, Age, Fertility Rate, Immigration Source: World Population Prospect: the 2012 Revision - United Nations Population Division of the Department of Economic and Social Affairs, United Nations, June 13, 2013 [24][25] Even earlier, genetic evidence suggests humans may have gone through a population bottleneck of between 1,000 and 10,000 people about 70,000 BC, according to the Toba catastrophe theory. Sergei P Kapitza, 'The phenomenological theory of world population growth', Learn how and when to remove this template message, List of countries and dependencies by population, List of countries and dependencies by population density, Institute for Health Metrics and Evaluation, sustainable limit to the world population, Global Assessment Report on Biodiversity and Ecosystem Services, List of countries by past and future population, List of countries by population growth rate, "World Development Indicators – Google Public Data Explorer", "World Population to Hit Milestone With Birth of 7 Billionth Person", "World Population Prospects, 2012 revision (697 million births from 1985–1990)", "World Population estimates by the US Census Bureau", "CIA, The World Factbook: Field Listing: Median Age", "World Population Prospects: The 2015 Revision", "World Population Prospects: The 2010 Revision Population Database", "Population estimates of the Roman Empire", "Plague, Plague Information, Black Death Facts, News, Photos", "History of Europe – Demographic and agricultural growth", "Historical Estimates of World Population", "Qing China's Internal Crisis: Land Shortage, Famine, Rural Poverty", "Super-Sized Cassava Plants May Help Fight Hunger In Africa", "U.S. News 08/18/97: How many people were here before Columbus? [105] However, this is only one of many estimates published by the UN; in 2009, UN population projections for 2050 ranged between around 8 billion and 10.5 billion. Different ethnicities also display varying birth rates. Source United Nations Population Division , . "even recent demographic data is accurate only from 3 to 5%, although in demography traditionally more digits are indicated than those having a meaning. 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. [81], 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. The following table gives estimates, in millions, of population in the past. h�bbd```b``���'@$��d�L�@$w��&��d�\&e�j|�� R�lZ7�d�}$��]f`bdp����� y�����h���� R�� [But] it will take a very long time to humanely reduce total population to a size that is sustainable." De facto population in World as of 1 July of the year indicated. Find Out, Online tool for visualization and analysis. [16] Antarctica only has a very small, fluctuating population of about 1000 people based mainly in polar science stations. [86], The Han Chinese are the world's largest single ethnic group, constituting over 19% of the global population in 2011. historical and predicted populations (both sexes) for the period 1800-2100 (in billions).
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