well Europe already have an cultural one child policy, same with japan. the rate Japan is at is that by 2100 there population will halve from what they have now.
But i agree there are too much people and an one child policy will fail so an much more drastic solution would be depopulation by extreme radical War. Yet 1 massive war will reduce population around 2-3 billion people and resources consumed will drop around 50-80% because of the war and will last around 20-30 years and so the environments will recover in areas due to halt in resource consumption.
Or the even more extreme and use biological weapons against countires that are poor and unsustainable.
But by the time we all die off an our grand children are alive they are completely F***ed. if nothing drastic happens
Of Course That's Just My Opinion, I Could Be Wrong
