United Nations data estimates that Zambia is currently the 67th most populous country in the world, with a population of around 16 million. By 2050, that number is expected to grow to nearly 40 million. Nearby Malawi, with a current population of 17 million, could grow to over 50 million in the same time frame. By contrast, Russia, the 9th largest country in the world right now, is projected to shrink by nearly 20 million, which will make it the 14th largest country in 2050.
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