Iranians are going to celebrate the “Earth Hour” today Saturday 31st of March. Here in this Farsi-language website, Iranians are organizing the “Earth Hour” events, including turning-off lights for an hour ‘to protect the planet’. Parham, an Isfahan-based user, tweets: ‘They are going to turn off Si-o-se Pol (historical bridge) in Isfahan. I guess this is the first time I would see this bridge to be in darkness’.