The current world population of 7.3 billion is expected to reach 8.5 billion by 2030, 9.7 billion in 2050 and 11.2 billion in 2100, according to the “World Population Prospects: The 2015 Revision”, ...
The coming decades will see the growth of colossal megacities as the world's population increasingly moves into urban environments, a new United Nations report predicts. Today, 55% of the world's ...
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