Between 2020 and 2100, 90 countries are expected to lose population, including two-thirds of
all countries and territories in Europe. According to the UN numbers, Africa is the only region
in the world projected to have strong population growth for the rest of the 21st Century -
mostly concentrated in sub-Saharan Africa.

Similar to trends in the US, the UN has linked falling fertility rates and population growth to gradual delays
in childbearing among women. Though the mean age of childbearing varies widely throughout the world,
overall increases will continue to lower fertility rates and global population growth in turn.