Population

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Distribution of world population in 1994
A map of world population in 2014.
Map of world population density in 2014.

A population is the number of living things that live together in the same place.[1] A city's population is the number of people living in that city. These people are called inhabitants or residents. The population includes all individuals that live in that certain area.The world population was estimated to have reached 7.5 billion in April 2017. Asia is the most populous continent, with its 4.3 billion inhabitants being 60% of the world population.

Population density is the average number of people in a place. Urban areas such as big cities have a high population density. People there live close to each other. In areas with a low population density, people usually live far away from each other, such as in rural areas out in the countryside.

Usually population refers to the number of humans in a certain area. The maximum population that can be supported in an area is called the carrying capacity.

Population trends[change | change source]

Global population is going up, but the population growth rate is declining all over the world. Urbanization is also common. In population growth births exceed deaths. In the modern world this is due to reduction of infant deaths, control of infectious diseases, and improved agriculture so more people can eat.

The change in population from 2010 to 2015 was:

  • World: +420 million
  • Africa: +142 million
  • Asia: +223 million
  • Europe: +3 million
  • Latin America and Caribbean: +35 million
  • Northern America: +14 million
  • Oceania: +2.9 million

Human population control is the practice of altering the rate of growth of a human population. Concerns about global population growth and its effects on poverty, environmental degradation, and political stability led to efforts to reduce population growth rates.

Related pages[change | change source]

References[change | change source]

  1. Holt Rinehart & Winston (2001). Earth Science. Austin, Texas: Holt, Rinehart and Winston. ISBN 0-03-055667-8.

Further reading[change | change source]