Some scientists predict that nearly all countries will have decreasing
populations by the end of this century, due to falling birth rates.
This is very good news, as it will reduce the climate disaster
(thought it will nonetheless be very bad).
However, they predict a population explosion for sub-Saharan Africa
which will be caught in a trap of poverty and population growth.
While I am not a demographer, I doubt that Nigeria could accommodate
800 million people without disaster, and the climate disaster will
exacerbate that. We need to help sub-Saharan Africa stabilize its
population long before that point.