Population Pyramids: Powerful Predictors of the Future

Russia, the country with the largest land mass, has a population in 2023 of 143.4 million people. Currently, that’s the ninth largest. But Russia’s population is declining. A decade ago, it had about the same population as Nigeria. But Nigeria has surged ahead, with in 2023 a population of 223.8 million, the seventh largest in the world. Yet Nigeria rem…