Kill all the straights, and re-populate the planet with state-controlled artificial insemination. From then on, as straights begin to appear again, any pregnancies un-regulated by the government should be terminated.
Overpopulation isn't the issue, it's how much energy we use and the issue of feeding all these people. Also distributing wealth so that all humans have the basic rights to water, food, education, medical care and sanitation. The fact that we've advanced so much technologically yet there is still poverty everywhere, even in the rich countries
In poverty, diseases, war, a kid just died because the head went down in a rice field,... parents tends to increase their amount of kids to compensate the risk of losing them to ensure there are still enough left. Because in countries without a welfare system providing pensions, taking a cut from your children income is your pension. More children means that you don't have to "tax" their income too heavy. No children left means no pension.
A kid in a poor agricultural place only needs food (grown in your field) and provides labour. This means the kids are making money for the family. More kids, more money made.
A kid in a high living standard place is expensive and the amount of children is limited by economics. Child benefit was invented by the employers, the bosses, to increase the amount of workers to ensure they can keep telling you "You don't want to work for this low, crappy, wage? For your position, there is are 10 others waiting to snatch your place!".
I dont think its gonna keep increasing at the rate it is now, as less and less people are in poverty they're having less children because they can afford protection and are educated on it.
World population was actually 5.3 billion in 1990.
In nearly every developed country, birthrates are less than required for generation replacement. Excluding migration, these countries will have reducing populations over time.
Exponentially increasing population sizes is almost strictly limited to developing countries. The answer is, as people already pointed out; education, access to birth control and family planning, secularisation, economic growth.
In poverty, diseases, war, a kid just died because the head went down in a rice field,... parents tends to increase their amount of kids to compensate the risk of losing them to ensure there are still enough left. Because in countries without a welfare system providing pensions, taking a cut from your children income is your pension. More children means that you don't have to "tax" their income too heavy. No children left means no pension.
A kid in a poor agricultural place only needs food (grown in your field) and provides labour. This means the kids are making money for the family. More kids, more money made.
A kid in a high living standard place is expensive and the amount of children is limited by economics. Child benefit was invented by the employers, the bosses, to increase the amount of workers to ensure they can keep telling you "You don't want to work for this low, crappy, wage? For your position, there is are 10 others waiting to snatch your place!".
The only way to lower birth rate is raising the living standard to such a level that the child becomes expensive for the parents.