The world is urbanizing fast. In 1975, about 11% of the global population lived in cities with more than 1 million inhabitants. "Today, we estimate that share to be about 24%," says Andrea Musso, junior fellow at the Complexity Science Hub (CSH) and Ph.

Source: [Phys.org](https://phys.org/news/2026-06-urban-growth-big-cities-smaller.html)

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