The goal of the ENERGY STAR® Change a Light, Change the World bus tour was to tell an energy conservation story in an exciting and interactive way. When presented with the project, our goal was to make sure the story reached as many people as possible. So, we aligned our event with the Halloween celebration at Navy Pier in Chicago and integrated a fun, spooky theme to attract visitors. The result? Thousands of pledges to switch to energy-efficient lighting. And, we just might have made a small difference in the world.