Sign Up Your Organisation!
Earth Hour aims to reach more than one billion people in 1000 cities around the world. Sign up and be counted. By doing this, you will help make Earth Hour the largest climate event in history.
Once you have signed up, spread the word. Encourage your friends, family and social network to participate. The more people who sign up, turn off and take action, the more united we are in making our voices heard about climate change.