Will help save energy.
Is a way to draw people's attention.
Will be taken in photos.
Proved the incapability of the world leaders to take action.
Made a lot of countries feel emotional.
Proved that the effects of climate change are already being seen.
Are determined to take action after Cophenagen.
Have the same attitude to the problem as other countries leaders.
Are aware of the problem but need voters to put some pressure on them.
The world leaders to engage in Earth Hour.
Both the world leaders and the citizens to take action.
Both the world leaders and the citizens to make changes at home.
Is just a useless deed.
Is the most useful way on hand to demand a change.
Is the only way on hand to demand a change