There were some emails about my article about being able to feed 40 billion people with today’s agricultural productivity. Food, energy, water, and ecosystems are connected. The complexity of those systems is secondary.
Why do people have large families? What is happening within countries that go from poor and breeding to wealthy and stabilized? Very big events in history show the uselessness of some of the arguments that are made about the topic of overpopulation.
Family Size, Public Health and Pensions People in Africa are still having 5-8 kid families. Why? They have no pensions. The kids are the pension plan. They have the reasonable expectation they will lose 2-3 kids before they grow up as a pension plan. The extra kids are spares to cover expected losses. This is why Africa’s population will double from 1.3 billion to 2.6 billion around 2050 and then double again by 2100.
The result in 2100 will be about 12 billion in 2100 and still going up. The world we have now is about 8 billion and then Africa adds 4 billion. The world population becomes 12 billion by 2100.
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