The U.N. has recently released its latest population projection. The projection predicts that the world’s population can increase from 7.3 billion to 11.2 billion by 2100. According to the projection, up to 9 countries will contribute to the significant increase in population from now on to 2050. The countries Nigeria, Uganda, India, Pakistan, the Democratic Republic of the Congo, Ethiopia, Tanzania, the United States, and Indonesia are expected to have significant population growths and will likely contribute to the rising world population.
While the population of the nine countries is expected to grow, populations in 11 other countries are expected to go down by 15% or more by 2050. It is speculated that the countries with low birth rates will counteract with the high population growth. Most of the countries are from Eastern Europe. Japan on the other hand, which is the world’s fastest-aging nation, is expected to lose about a third of its population by 2100.
In comparison, Africa is still a young continent but its population has nearly quadrupled this century. In 19 countries, women have five children on average. Nigeria, in particular, seems to have one of the fastest growing populations in Africa and is expected to be the 3rd most populous country by 2050 and will surpass the United States.