While looking for a solution to climate change today, recent research has revealed that ancient Naples could have solved the problem. Researchers are looking into how the region's ancient streams might provide refuge from intense heat as the planet warms.

Established as Cool City Project, Italian and American design students and architects collaborate to form a map of ancient aqueducts and water systems in Naples. Their goal is to see whether this already-existing infrastructure, which is sometimes centuries old and set up underground, might stave off deadly heat waves in one of Europe's most heavily inhabited regions and one of the world's oldest cities.