The Great Melt: How Climate Change is Rewriting the Rules of Long-Distance Running
October 2, 2026
DES MOINES, Iowa — For Paul Grinvalds, a 68-year-old veteran of 114 marathons across all 50 states, the rhythmic pounding of pavement is a lifelong passion. Yet, as global temperatures climb, Grinvalds finds himself increasingly at odds with the sport he…
