Earth Hour stems from a grassroots movement that began in Sydney, Australia, in 2007. Its goal is to create greater awareness regarding energy consumption and to encourage communities to consider turning off their non-essential lights for one hour, between 8:30 p.m. and 9:30 p.m., Saturday, 25 March. We encourage you to adapt the vigil to a time and place that is most suitable for your school community.
To find out more about Earth Hour you may wish to visit its website at http://www.earthhour.org/.
You can also access the material online at the CCCB websiteEarth Hour_English