National Geographic Explorer Paul Salopek is walking around the globe on foot. His project, called the Out of Eden Walk, started in January 2013. Salopek now marks 13 years on the road with Host Marco ...

If you’re a regular listener of the show, then Paul Salopek needs no introduction. But if you don’t know, Salopek, a National Geographic Explorer, is on a 21,000-mile journey across the globe on foot, ...