This report provides a comprehensive analysis of the Earth Hour, a global environmental movement initiated by the World Wide Fund for Nature (WWF). It begins with an overview of Earth Hour, describing its origins, goals, and significance in raising awareness about environmental issues such as climate change and global warming. The report then traces the timeline of Earth Hour, highlighting its growth from a small initiative in Sydney, Australia, to a worldwide phenomenon with participation from numerous countries and landmarks. It also examines the involvement of various corporations in supporting Earth Hour, detailing their initiatives and contributions to the cause. Furthermore, the report discusses two major corporations, The Coca-Cola Company and Walmart, that have actively participated in Earth Hour, analyzing their motivations and the benefits they have derived from their association with the event. The paper also explores the selection of a suitable ambassador for Earth Hour and identifies a country that has experienced positive changes after affiliating with the movement. Overall, the report underscores the impact of Earth Hour in fostering environmental consciousness and promoting sustainable practices worldwide.