: The UN predicts that the urban population will grow by another 2.5 billion by 2050, reaching approximately 68% of the world's population.
The pace of urbanization is accelerating at an unprecedented rate, primarily driven by rural-to-urban migration in search of economic opportunity. The Urbanization Revolution: Planning a New Age...
: While there were only two megacities (populations over 10 million) in the 1950s—New York and Tokyo—there are now 34 , a number expected to reach 43 by 2030. Challenges for the New Century : The UN predicts that the urban population
Rapid growth has historically outpaced infrastructure, leading to overcrowding, substandard housing, and public health risks. Today's planners face a complex web of modern obstacles: Urbanization - Our World in Data Challenges for the New Century Rapid growth has
: More than 4 billion people —over 56% of the global population—currently live in cities.