Miners once lived and worked in Humberstone saltpeter works. Now it's a ghost town and UNESCO World Heritage Site. Photos ...

Israel and Hamas have been holding indirect talks for more than a year aimed at ending the war in Gaza and returning scores ...

Explore how common construction materials like concrete and plastics can store carbon and fight climate change.

As California battles raging wildfires, wealthy Los Angeles residents are hiring private firefighting services to protect ...

The President-elect’s brand of America First isolationism has always sat awkwardly with his Napoleonic tendencies.