When Dennis Dimick was 12, he was already documenting the world around him. His first photo-essay was about his 4-H potato project, and the resulting panoramic pictures were exhibited at the county fair. True to the tradition of documentary photography that he began as a boy, Dimick is now Executive Editor at "National Geographic" magazine. He previously served as the magazine’s environment editor. His special focus is on the nexus between climate change, our energy choices and a sustainable economy. Dimick has also photo-edited several National Geographic Society books, including a book on the Endangered Species Act called "The Company We Keep." His “Signs from Earth” articles have been cited by the Overseas Press Club for best environmental coverage. An August 2005 "National Geographic" article on alternative energy called “Future Power” was rated by readers as the most popular of the year.