The social network Twitter, collaborates with earth hour, with a new application that will turn off the lights of the profile photo of users in a symbolic way.
To join the campaign you need to enter eh2011.com, and put your city of residence, in this way right at the earth hour of each country, the photograph of the user's profile will be replaced by a black image with the logo of the bell.
Remember to join this Saturday 26 at Earth Hour 2011, the world's largest call to action to fight climate change, turn off the light and turn on the planet.
Authors: Santiago