Earth day
 
On 31 March 2007, more than two million Sydney businesses and households turned off their lights for one hour, Earth Hour, creating a powerful global message that it's possible to take action on climate change.
 
Earth Hour is about inspiring you to make changes every day. In 2008, the action successfully repeated and plans are already made to do it again in 2009. Earth Hour was the creative elaboration of the famous creative advertiser Leo Burnett from Poland for the World Wildlife Fund.