Following current trends, the
human population would start to decrease
in the 2080s. With all the real problems that could cause human extinction, the lack of
interest in procreation is hardly worth mentioning.
Current trends cannot continue until the 2080s. If we don't curb
global heating soon, and various problems of pollution, the population
by then will be much smaller than now.
We can't maintain the current population and give a good standard of
living to everyone, barring a spectrum of miraculous scientific advances
which one cannot count on. We need it to decrease, and it will.
There are three ways for the human population to decrease: the humane
way (birth control and abortion), the depression-filled way (mass
celibacy), and the gruesome way. We are heading for the gruesome way.