Earth Hour 2011 takes place on Saturday, March 26 at 8:30pm. Earth Hour 2010 gained participation from 128 countries and territories across the world, making 2010 the largest Earth Hour thus far. Earth Hour began in Australia in 2007, and since then has steadily been gaining momentum. This year, extend the hour, and contemplate what you can do to make a difference!
For more information, visit the Earth Hour website.