![]() It will sit in fourth place behind Nigeria with around 375 million people, the agency projected. will no longer be the world’s third most populous country, the UN estimates. Countries in sub-Saharan Africa, meanwhile, are expected to keep growing throughout 2100. The UN projects India and China will remain the world’s first and second largest population hubs, though China is expected to face a precipitous drop in its population, halving its current value by the end of the century. India and China are currently home to around 1.39 billion and 1.41 billion people, respectively, each more than four times the U.S., the world’s third most populous country. India is slated to overtake China as the world’s most populous country at some point during 2023, the UN estimated. By 2050, Bulgaria, Latvia, Lithuania, Serbia and Ukraine are all projected to face losses of 20% or more, the UN said. Today, the UN estimates around two-thirds of the global population live in a country of area where birth rates aren’t sufficient to maintain the population size and some 61 countries or areas are projected to decrease by 1% or more by 2050 (emigration, as well as falling fertility rates, is also a factor here). ![]() Birth rates have fallen across much of the world-numerous factors can help explain this, including increased access to contraception, the aging population, better education and progress protecting the rights of women and children-and in many countries, fertility rates have already fallen well below what is needed to maintain the size of the population. Humanity passed the 7 billion milestone in 2011 and the UN estimates it will not reach 9 billion until 2037, 15 years from now. Though the human population is still climbing, growth is slowing. ![]()
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