Rising seas threaten Egypt's fabled port city of Alexandria

Egypt's coastal city of Alexandria, which has survived invasions, fires and earthquakes since it was founded by Alexander the Great more than 2,000 years ago, now faces a new menace in the form of climate change.

Turning around urban decline

We've all seen the photos of Detroit when it was at its lowest point after the 2008 recession: street after street of vacant lots and abandoned homes—a city in visible decline. It might have been the poster child for urban ...