Everest has its oxygen tanks, El Capitan has its bolts, and the Appalachian Trail has its feces. Forget cell phone towers, road construction, and development: one of the most serious manmade problems the A.T. faces is human waste.
It’s spring, and with the warmth comes the need to drink (and not just socially). Hydration is one of the most important moderators of fitness out there. Most climbers and other athletes have explored many kinds of hydration methods.