What is the ENERGY STAR Change a light campaign How many people have taken the pledge?

The ENERGY STAR Change a Light campaign encourages individuals and organizations to replace traditional incandescent light bulbs with energy-efficient alternatives, such as compact fluorescent lamps (CFLs) or light-emitting diodes (LEDs). This initiative aims to promote energy conservation and reduce greenhouse gas emissions. As of recent reports, over 6 million people have taken the pledge to change at least one light bulb as part of the campaign.