One in three people are either Chinese or Indian, and China has the highest population in the world. The population in China makes up 21 percent of the world's population.
To combat overpopulation, the Chinese government implemented a "one child per family" policy. Citizens of the country are given financial benefits if they agree to have only one child. Those who choose to have more than once child face a tax of up to 50 percent of their income or loss of employment. The country has also implemented sterilization programs for families that have had two children, and unplanned pregnancies without proper government authorization were terminated.