The Kigali Convention Center in Kigali, Rwanda, Jan. 30, 2021 (photo by Reaching the Last Mile, via AP Images).

The extraordinary demographic change currently sweeping Africa is one of the most important challenges facing humankind over the remainder of this century. United Nations projections predict that from its present population of nearly 1.4 billion people, the continent’s population will approach 4.5 billion people by 2100, which is the staggering equivalent in population terms of two Chinas and one India. Other carefully considered efforts to project global population trends, such as a recent study published in the Lancet, predict an even larger African population two generations hence. Demographic growth on such a scale will affect nearly every human question one […]