Part 2/9:
Today, one in seven people on Earth is African, a figure that is expected to rise to one in four by 2050 and possibly one in three or even higher by 2100. This shift is especially concentrated in sub-Saharan Africa, where high birth rates persist compared to other regions. In contrast to regions like Europe and East Asia, which have seen a demographic transition marked by declining fertility rates, sub-Saharan Africa remains in the early, rapid growth phase of this transition.