“Earth Hour began in Sydney in 2007, when 2.2 million homes and businesses switched off their lights for one hour. In 2008 the message had grown into a global sustainability movement, with 50 million people switching off their lights.” - Source: About Earth Hour

This is the first time I participated in the Earth Hour movement. Switched off all the lights and computers at home. I listened to the radio in the dark. Haven’t done this in ages.