Are you ready for Earth Hour?

Recently, Earth Hour becomes one of the popular topics on the Internet.
Earth Hour, an international event created by WWF, aims at solving the global warming problem. At the same time, all the participator in the world will take off their lights for one hour. So much electricity and power will be saved and carbon dioxide emission will be cut which have been proved by many reports. And this year, Earth Hour will start at 8:30 on March 28th. China is also a member of this event. Then, we can do something at that time to take action on climate change.
Of course, we should save energy not only at the certain time but pay attention to it all the time. Whatever, it is our responsibility to keep our earth clear and alive.