By, March 20 -- Kamohelo Ntsebeng

Maseru

In 2004, confronted with scientific findings, WWF Australia met with advertising agency Leo Burnett Sydney to "discuss ideas for engaging Australians on the issue of climate change". The idea of a large scale switch off was coined and developed in 2006, originally under the working title "The Big Flick". WWF Australia presented their concept to Fairfax Media who, along with Sydney Lord Mayor Clover Moore, agreed to back the event, which would then be in 2007.

The 2007 Earth Hour was held on March 31 in Sydney, Australia at 7:30 pm, local time.

In October 2007, San Francisco ran its own "Lights Out" program inspired by the Sydney Earth Hour. After their successful event in October, the organizers ...