Pew Research Center: For World Population Day, a look at the countries with the biggest projected gains — and losses — by 2100
John Gramlich, senior writer/editor at the Pew Research Center, discusses population growth in Africa, highlighting how the list of the 10 most populous countries in the world has changed and how it is projected to change. Gramlich notes, “Four of the 10 most populous countries in the world will no longer be among the top 10 in 2100 — and all four will be supplanted by rapidly growing nations in Africa, according to recently released population projections from the United Nations (7/10).