Earth Hour

Tonight, 'Earth hour' will take place. From 20:30 - 21:30, all over the world, people will turn of their lights to ask the world leaders to do something about the changing climates. Not only households, but also stadiums, tourists attractions and business apartments will participate. This will obviously not happen at the same time, because of the different time zones. Nonetheless, if you could just spare 1 hour of lights - tonight - you could make a difference.