What can happen when world population reaches 18 billion?

As it happens in the year 2100 where I live the global population on earth has been permanently fixed by the EPAA (Earth Population Affairs Administration) at exactly 18 Billion. After some intensive discussion involving mass cybertelepathy, by 2095 it had been decide that 18b was sufficient. read more

Firstly, I would rephrase the question as “what would happen if the world population reached 18 billion” because the world population is projected to plateau at around 11 billion, starting in 2100 unless everyone just becomes immortal. read more

IIASA claims that population growth will slow down even faster than anticipated, and that the world’s population will peak at 9.5 billion people (in 2070) before declining to below 9 billion by the turn of the century. read more