In a multi-faceted piece, The Washington Post described the rapidly growing cities in Africa that are projected to be the most populated cities in the world:
In three projections by the University of Toronto’s Global Cities Institute, Africa accounted for at least 10 of the world’s 20 most populous cities in 2100. Even in the institute’s middle-of-the-road development scenario, cities that many Americans may seldom read about, such as Niamey, Niger, and Lusaka, Zambia, eclipse New York City in growth.
Many U.S. cities such as Atlanta, Houston, and Washington, D.C. are projected to fall out of the top 100 by 2100.