For those willing to take part, Earth Hour is taking place this week end on Saturday March 31. Toronto is making a day of it with Etobicoke Earth Hour 2012, in association with Big on Green: Green Workplace – Green Community.
Click here for all sorts of activities that will be taking place throughout the day leading to the big light shut down.
Earth hour began in Sydney Australia back in 2007 and since then has spread to more than 130 countries and thousands of cities and towns throughout the world.
Great Earth Hour video below.