India, according to the United Nations, by 2028 the world's most populous country as China looks set to overtake.
At this point, the two countries will number 1.45 billion people. Then gradually declined in China, India's population will continue to grow until mid-century.
The UN's current global population of 7.2 billion by 2050 will reach 9.6 billion that is estimated.
Than previously estimated growth rate is faster.
Population growth, especially in Africa, will be mainly in developing countries, the UN says.
The population of developed regions will remain largely unchanged, while the world's 49 least developed countries in 2050 to 900 million in 2013 to around 1.8 billion people by offering to double in size said.
The United Nations increased its projection of fertility levels in some high birth rate countries on a large scale is new information.
Nigeria Development
Such as China, India and Brazil as major developing countries, the rapid decline in the average number of children per woman is seen, but as Nigeria, Niger, Ethiopia and other nations as Uganda, I, fertility levels are higher.
Nigeria's population by mid-century America than expected, and by 2100 China may begin to rival.
Since 2030, China's population is expected to start declining.
"The world overall population growth is slow, however, in this report, some developing countries, especially in Africa, are still growing fast reminds us," Wu Hongbo, UN Under-Secretary-General for Economic and Social Affairs commented.
United Nations World Population Prospects known as a series, every two years past, examine the present and future population trends is published.
Researchers reported Friday to create data for 233 countries and areas used.
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