What role does UN play to control population growth?
Population planning that is intended to reduce a population or sub-population's growth rates may promote or enforce one or more of the following practices, although there are other methods:
Higher taxation of parents who have too many children.
Contraception.
Abstinence.
Reducing infant mortality so that parents do not need to have many children to ensure at least some survive to adulthood.
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.
Migration from rural areas to urban areas having more children is financially more beneficial (for the poor) in rural areas then in urban areas.
Create small family "role models".
Changes to immigration policies.
Emigration[citation needed.
The method(s) chosen can be strongly influenced by the religious and cultural beliefs of community members. The failure of other methods of population planning can lead to the use of abortion or infanticide as solutions.