The Melting Finish Line: How Climate Change is Rewriting the Rules of Long-Distance Running
DES MOINES, Iowa — For Paul Grinvalds, the rhythm of a marathon is a lifelong pursuit. Having crossed the finish line of 114 marathons across all 50 states, the 68-year-old West Des Moines native is no stranger to the physical toll of 26.2 miles. Yet,…
The Heat Barrier: How Climate Change is Rewriting the Rules of Long-Distance Running
DES MOINES, Iowa — Paul Grinvalds has spent decades chasing the finish line, completing 114 marathons across all 50 states. Yet, for the 68-year-old West Des Moines resident, the greatest adversary is no longer the daunting 26.2-mile distance or the…
The Long Run: How Rising Global Temperatures are Rewriting the Rules of Distance Racing
DES MOINES, Iowa — For Paul Grinvalds, a 68-year-old veteran of the pavement who has successfully completed 114 marathons across all 50 states, the challenge of the 26.2-mile distance is supposed to be about endurance, training, and mental fortitude. But…
The Heat Barrier: How Climate Change is Rewriting the Rules of Long-Distance Running
DES MOINES, Iowa — For Paul Grinvalds, the marathon is not just a test of endurance; it is a lifelong pursuit. Having completed 114 marathons across all 50 states, the 68-year-old West Des Moines resident is an authority on the physical and psychological…
The Great Melt: How Climate Change is Rewriting the Rules of Long-Distance Running
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…
