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'Delhi to overtake Tokyo as most populous city by 2028'

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68% of the world population projected to live in urban areas by 2050, says UN

Two thirds of the world population will live in cities by 2050.

Cairo, Mumbai, Beijing and Dhaka are all closing in on the 20-million inhabitant mark. And by 2050, 68 per cent of the world population will live in urban areas, increasing from 55 per cent now.

As of 2018, there are 4.2 billion people living in urban areas worldwide, an vast increase from the 751 million in 1950.

Kozhikode is projected to more than double its population to 5.6 mn between 2015 and 2035 and Surat will come close to matching that pace, according to the report.

"It is interesting to note that around the same time India is expected to surpass China as the country with the world's total largest population", Wilmoth said.

Meanwhile, NAIJ.com reported that the National Population Commission (NPC) had put Nigeria's current population at 198 million people with urban population growing at an average annual growth rate of about 6.5%. The Guardian reports that now, 55 percent of the world's population resides in urban areas and this will increase to about 68 percent in 32 years. Several cities in countries of Eastern Europe, such as Poland, Romania, the Russian Federation and Ukraine, have lost population since 2000 as well. No other Indian city would figure among the world's 10 biggest, a list that includes six Asian cities, two from Africa and one each from South and Central America.

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"The global rural population is now close to 3.4 billion and is expected to rise slightly and then decline to 3.1 billion by 2050", the report said. Also, urbanisation will play a huge role as there will be a gradual shift in the residence of the human population from rural to urban areas in Asia and Africa.

As of 2018, there are 33 megacities and by 2030, 43 megacities are projected, mostly in developing countries. Of this, India has the largest, at 893 million people, followed by China's 578 million. DESA stresses that sustainable urbanisation is essential to successful development.

"When urban growth is rapid, ensuring access to housing, water, sanitation, electricity, public transport, education and health care for all is especially challenging", John Wilmoth, director of the Population Division, said at a United Nations news conference, according to Reuters.

The report added that linkages between urban and rural areas would need to be strengthened, building on their existing economic, social and environmental ties.

To ensure that the benefits of urbanization are fully shared and inclusive, policies to manage urban growth need to ensure access to infrastructure and social services for all, focusing on the needs of the urban poor and other vulnerable groups for housing, education, health care, decent work and a safe environment.

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