Jakarta

Too Many Cities Are Growing Out Rather Than Up — 3 Reasons That’s A Problem

Imagine Lagos, Nigeria, a city of 22 million. What was once a small coastal town just a few decades ago has exploded into a sprawling megacity spanning 452 square miles. Its rapid growth has stretched the city’s services impossibly thin: Less than 10 percent of people live in homes with sewer connections; less than 20 percent have access to tap water. Many houses are in slums and informal settlements at the city’s periphery. Now picture Lagos twice as big.

5 Cities Reaping The Benefits Of Climate Action

This year’s Cities100 reveals how more cities are beginning to acknowledge the social, economic, and environmental benefits of climate action and adaptation. By taking climate action, cities can simultaneously future-proof against challenges such as overpopulation, air pollution, and extreme weather events, and save trillions of dollars on, for example, energy and health.