At the outset of his very, very long walk, during which he decided to stop speaking for 17 years, some people began to suspect John Francis had lost his mind. Others lauded him for embarking on an enlightened journey to save the planet.
In hindsight, the optimists proved correct. Since embarking on his quest, he’s served as a United Nations goodwill ambassador for the environment and a National Geographic explorer. He’s given a Ted Talk,…