Marek, a 17-year-old unaccompanied migrant from Armenia, clasps nervously at the holds at a Paris climbing wall, then overcomes his fear and makes it to the top victorious. Marek was this weekend one ...

Nepali climbers, predominantly ethnic Sherpas from the Everest region, have long been crucial to the Himalayan climbing industry ... “As a teenager, witnessing the division caused by borders ...