Earth Hour is a global event created to symbolize that each one of us, working together, can make a positive impact on climate change - no matter who we are or where we live.
Created by WWF in Sydney, Australia in 2007, Earth Hour has grown from a single event into a global movement. In 2008, millions of people, businesses, governments and civic organizations in nearly 200 cities around the globe will turn out for Earth Hour. More than 35 US cities will participate, including the US flagships–Atlanta, Chicago, Phoenix and San Francisco.
Earth Hour brings together communities, local governments, corporate and nongovernmental organizations to heighten awareness about climate change and to inspire our nation to take practical actions to reduce their own carbon footprints.