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The population growth rate estimates (according to the United Nations Population Prospects 2019) between 2015 and 2020 [1] This article includes a table of countries and subnational areas by annual population growth rate.
Globally, the rate of population growth has declined from a peak of 2.2% per year in 1963. [8] Population growth alongside increased consumption is a driver of environmental concerns, such as biodiversity loss and climate change, [9] [10] due to overexploitation of natural resources for human development. [11]
The 2022 projections from the United Nations Population Division (chart #1) show that annual world population growth peaked at 2.3% per year in 1963, has since dropped to 0.9% in 2023, equivalent to about 74 million people each year, and could drop even further to minus 0.1% by 2100. [4]
The practice, traditionally referred to as population control, had historically been implemented mainly with the goal of increasing population growth, though from the 1950s to the 1980s, concerns about overpopulation and its effects on poverty, the environment and political stability led to efforts to reduce population growth rates in many ...
Many studies have tried to estimate the world's sustainable population for humans, that is, the maximum population the world can host. [5] A 2004 meta-analysis of 69 such studies from 1694 until 2001 found the average predicted maximum number of people the Earth would ever have was 7.7 billion people, with lower and upper meta-bounds at 0.65 and 9.8 billion people, respectively.
The numbers show total births minus total deaths per 1,000 population for the region for each time period. The first four columns show actual rate of natural increase. The remaining columns show projections using the medium fertility variant.
The Physikalisch-Technische Bundesanstalt (PTB) is the national metrology institute of the Federal Republic of Germany, with scientific and technical service tasks.It is a higher federal authority and a public-law institution directly under federal government control, without legal capacity, under the auspices of the Federal Ministry for Economic Affairs and Climate Action.
The rate at which a population increases in size if there are no density-dependent forces regulating the population is known as the intrinsic rate of increase.It is = where the derivative / is the rate of increase of the population, N is the population size, and r is the intrinsic rate of increase.