China's scientists realized in the late 1970s that, to prevent ecological collapse from overpopulation, they would need an enforced one child family law. They did that, >>>then farmers complained, logically, that if they only had one child, then food production would fall in half. So the farmers were allowed two children.<<< The lowest China's TFR got was 1.6 (in 1986), so China's momentum caused it to grow to the present nearly 1.4 billion when the scientists in 1979 anticipated only 1.1 billion before decline toward a lowering sustainability.
Now, they will crash from eco-collapse at some time after 2028, unless they attack and conquer more resources.
Mathematically, a worldwide forced 1 child policy, allowing for at least ten years implementation time, and moderate enforcement (a net TFR of 1.3), would have worked to prevent population die off at mid century, if started in 1998. Now, it would take a fifteen to twenty year moratorium on having children(and increased execution of criminals), followed by a world wide one child per family policy (until the new sustainable level is reached, i.e. .5B).
This will never happen, with knowing human psychology and the huge logistics of such an endeavor. The natural population crash of population in extreme overshoot will instead happen.
>>>The barbarism of the above post will be common with desperate people stealing others' food and water, and eventually murdering just to eat them.<<<
>>>Desperate people, who have already overpopulated their countries to economic hardship, have been migrating to other countries for a generation, bringing down wages, increasing costs, and increasing social cost burdens. An example: The wage suppression suffered by many millions of middle class Americans for the past 30 years, the rapid rising prices, the 14 trillion debt, and recession, can trace many of their roots in gross overpopulation induced by migration, and mistakes made in 1964-5 (and since) by the government.(gross over immigration of people who did not originally build the USA---mainly third world low IQ over-breeders we do not need). The chart at http://www.numbersUSA.com
shows it fairly well (it is actually worse than the chart shows, with its straight line instead of geometric growth curved line of reality).