When Will Steger was 15 years old, he and his brother piloted an old motorboat down the Mississippi River from Minnesota to New Orleans. At 17, he journeyed to the Arctic. At 41, he became the first man in history to travel unsupported to the North Pole and come back alive. He's traveled across Antarctica by sled (another first), hopped freights, and found his purpose at a mountain monastery.
But there's just one challenge the Arctic explorer couldn't complete: Keeping Tim Pawlenty honest on global warming.