Global Cities Shift from Sprawling Outward to Building Upward

New satellite study reveals a significant trend towards vertical urban growth, especially in Asia, impacting sustainability and equity.

Researchers analyzed satellite data from over 1,500 cities worldwide from the 1990s to the 2010s.
The study found that cities with populations over 10 million are leading this vertical growth trend.
Vertical development promotes sustainability but raises concerns about gentrification and social equity.
The trend is most pronounced in Asian cities, while European cities continue to expand outward.
Urban planning must adapt to these changes to address resource allocation, climate impact, and infrastructure needs.