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Human overpopulation (or human population overshoot) is the idea that human populations may become too large to be sustained by their environment or resources in the long term. The topic is usually discussed in the context of world population, though it may concern individual nations, regions, and cities. Since 1804, the global living human ...
Published estimates for the 1st century ("AD 1") suggest uncertainty of the order of 50% (estimates range between 150 and 330 million). Some estimates extend their timeline into deep prehistory, to " 10,000 BC", i.e., the early Holocene, when world population estimates range roughly between 1 and 10 million (with an uncertainty of up to an ...
201. ISBN. 1-56849-587-0. The Population Bomb is a 1968 book co-authored by former Stanford University professor Paul R. Ehrlich and former Stanford senior researcher in conservation biology Anne H. Ehrlich. [1][2] From the opening page, it predicted worldwide famines due to overpopulation, as well as other major societal upheavals, and ...
From 1333 to 1337 a famine in the north killed 6 million Chinese. The four famines of 1810, 1811, 1846, and 1849 cost perhaps 45 million lives. [ 28 ][ 29 ] The period from 1850 to 1873 saw, as a result of the Taiping Rebellion, drought, and famine, the population of China drop by over 30 million people. [ 30 ]
High, medium, and low projections of the future human world population [ 1 ] In world demographics, the world population is the total number of humans currently alive. It was estimated by the United Nations to have exceeded eight billion in mid-November 2022. It took around 300,000 years of human prehistory and history for the human population ...
Conquests of Timur. 7–20 million [ 10 ] 1369–1405. Timurid Empire vs. various states in Asia. Central Asia, West Asia, and South Asia. Russian Civil War. 7–12 million [ 20 ] 1917–1922. Multiple sides; Bolsheviks, Anti-Bolshevik left, White Movement, Allied and Central Intervention, as well as various separatists.
Population growth is the increase in the number of people in a population or dispersed group. Actual global human population growth amounts to around 83 million annually, or 1.1% per year. [ 2 ] The global population has grown from 1 billion in 1800 to 8.1 billion in 2024. [ 3 ] The UN projected population to keep growing, and estimates have ...
The table below shows that from 2020 to 2050 and beyond to 2100, the bulk of the world's population growth is projected to take place in Africa. Of the additional 1.9 billion people projected between 2020 and 2050, 1.2 billion will be added in Africa, 0.7 billion in Asia and zero in the rest of the world.