In his recent essay in The Des Moines Register, Jonathan Wilson wrote regarding the Earth’s population, “The current rate of population increase is simply not sustainable.” That statement is literally true. The rate of the world’s population increase has been slowing for decades. According to a forecast by the United Nations, which is more pessimistic than other forecasts, the world population is expected to peak at about 11 billion people near the end of this century and then begin to decline.
A clear pattern has been established. As countries around the world have become more affluent, their population growth rates have slowed. As people gain more income and wealth they have better access to birth control and respond to the various costs associated with having more children by having fewer of them. So, maybe the best thing we can do to further slow the rate of population increases is to help people in poorer countries to improve their economic situation. We might best do that by reducing barriers to free trade. Good jobs in poor countries will also result in fewer people wanting to illegally immigrate to other richer countries like the U.S.
Link to Johathan Wilson’s essay in The Des Moines Register: https://www.desmoinesregister.com/story/opinion/columnists/iowa-view/2021/10/17/world-food-prize-feeding-birth-control-both-needed/8214529002/