Climate Change Is Putting Swelling Cities at Risk Everywhere

Weather events exacerbated by climate change will threaten many places in the coming years, and many of these locations are also projected to gain a lot of new inhabitants. In the world’s largest cities, governments will have to do more to protect the millions of people in danger from a hot planet.

Sources: Notre Dame Global Adaptation Initiative, UN-Habitat

• Drought has edged Mexico City close to “Day Zero,” when it would run out of water.
• Phoenix has a director of heat response and mitigation whose department runs, among other things, a tree-planting program to provide shade.
• Cairo’s $390 million Abu Rawash wastewater treatment plant is one ...