Chapter 12. Smart and Connected Cities

The world is rapidly urbanizing, and this trend is slated to continue. Less than one-third of the world’s population lived in cities in 1950; by 2050, two-thirds of our planet’s population will be city dwellers. Africa and Asia, which today account for 90% of the world’s rural population, are projected to have 56% and 64%, respectively, of their populations urbanize. Today, the percentage of people in North America, Europe, Latin America, and the Caribbean who live in cities already exceeds 70%. In terms of raw numbers, the urban population of the world has grown to nearly 4 billion, from just 746 million in 1950. By 2050, this figure will grow by another 2.5 billion.

Most cities started as small urban centers ...

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