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Human population control is the practice of artificially altering the rate of growth of a human population. Historically human population control has been implemented with the goal of increasing the rate of population growth. In the period from the 1950s to the 1980s, concerns about global population growth and its effects on poverty, environmental degradation and political stability led to efforts to reduce population growth rates. While population control can involve measures that improve people's lives by giving them greater control of their reproduction, a few programs, most notably the Chinese government's "one-child policy", have resorted to coercive measures. ==Methods== Population control may use one or more of the following practices although there are other methods as well: * Contraception * Abstinence * Reducing infant mortality so that parents do not increase their family size to ensure at least some survive to adulthood.〔Lifeblood: How to Change the World One Dead Mosquito at a Time, Alex Perry p9〕 * Abortion * Changing status of women causing departure from traditional sexual division of labour. * Sterilization * One-child and Two-child policies, and other policies restricting or discouraging births directly. * Family planning * Role-Model a Small Family as the Norm〔 The method(s) chosen can be strongly influenced by the religious and cultural beliefs of community members. The failure of other methods of population control can lead to the use of abortion or infanticide as solutions. While a specific population control practice may be legal/mandated in one country, it may be illegal or restricted in another, indicative of the controversy surrounding this topic. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「human population control」の詳細全文を読む スポンサード リンク
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