Carter Roberts is president and CEO of the World Wildlife Fund, a nonprofit group that works to conserve nature around the world. From his childhood exploring the woods near his home, to his career protecting habitats in the far corners of the earth, Roberts has fostered a connection to the natural world. His job is as diverse as the ecosystems he visits. One day he may be negotiating with the president of a corporation, and the next he is sitting on a dirt floor talking with villagers about the value of saving tigers. In the end his message is the same: we’d better start protecting nature before it’s too late.…