Who first initiated the earth hour?

The first Earth Hour took place in Sydney, Australia, in 2007. It was an idea developed by newspaper The Sydney Morning Herald and WWF. For that first ever Earth hour, 2.2 million homes and businesses in the Sydney area switched off their lights for the period of one hour. The following year, 2008, saw Earth Hour go global, when an estimated 50 million people, businesses and landmarks turned off their lights for an hour.