I think Earth Hour is a good idea. With this manny people turning off their lights it can save a lot of energy. It also acts as a publicity stunt to spread awareness of saving the environment. Over 127 countries participate. With that manny countries participating a lot of people find out about the hour. This raises awareness for saving the environment and doing this every year lets a lot of people know that they need to save the environment. After they learn about the hour they go to the website. Once they are on the website they learn little ways to help the environment. After a while there are thousands of more people helping the environment. This is a really good idea.
Visit Earth Hour here: http://www.earthhour.org