Sub-Saharan Africa: towards a faster decline in fertility

Most countries in sub-Saharan Africa (SSA) are experiencing high population growth. This growth is caused by declining mortality rates, in a context of slowly declining fertility rates and very young age structures. As a result, SSA’s population could almost quadruple by the end of the 21^st century, from 1.09 billion people in mid-2020 to 3.8 billion in 2100 [1]. But such a projection depends largely on fertility trends. Could fertility decline more rapidly?