Thanks to everyone who helped make our Change a Light campaign a success. All efforts combined have surpassed our goal of saving 2.8 millions tons of greenhouse gases. the Change a Light program, is a national campaign asking people to replace at least one regular light bulb with an energy efficient one—the more changed the more we all save. With lighting accounting for about 20% of the typical home’s total energy use, switching to energy efficient options is a significant way to save energy, reduce greenhouse gases, and protect the environment for future generations.