Today is the day. This is the day of the Earth Hour. In case you don’t know it, the Earth Hour is an international event organized by the and held on the last Saturday of March each year, which asks people to turn off their non-essential lights and electrical appliances for one hour to raise awareness towards the need to take action on climate change. This year, Earth Hour takes place on Saturday, March 28, 2009 at 8:30 pm, local time.
On the 11th of March 2009, Australian post has issued these three funny stamps to celebrate this event and to invite people to participate.