This past summer, with Stoup, the world’s most traveled polar explorer, and Fletcher, a world-class helicopter ski guide, plans for an expedition to the South Pole began to take shape. Training for Antarctica became a mission. The expedition team called it “The Push.” In July, with another adaptive athlete, John Davis, a two-time Paralympics gold medalist, Korgan paddled his kayak 50 miles in four days on the Lake Tahoe Water Trail. The team set out on a series of mini expeditions that included treks in Alaska, the Arctic, Lake Tahoe and Patagonia…