Based on this, the UN Population Division expects the world population, which is at 7.8 billion as of 2020, to level out around 2100 at 10.9 billion (the median line), assuming a continuing decrease in the global average fertility rate from 2.5 births per woman during the 2015–2020 period to 1.9 in 2095–2100, according ...

What is the maximum population the Earth can sustain?

Many scientists think Earth has a maximum carrying capacity of 9 billion to 10 billion people. One such scientist, the eminent Harvard University sociobiologist Edward O. Wilson, bases his estimate on calculations of the Earth's available resources.

What number will the population stabilize?

And although previous studies have predicted that the world's population will stabilize around 2050, a new study projects that the population may continue to grow, to the end of this century and beyond: to 9.6 billion in 2050 and 10.9 billion in 2100.