Just a reminder — second year in a row — for those of you who haven’t been following along at home: global warming is a hoax. If you do this Earth Hour barminess, all you’re demonstrating is what an ignorant tool you are.
However… If you really do want to shiver in the dark, don’t let me stop you. Just don’t try to force that on me. If you’re worried about running out of energy, trying making some more. Not like there’s a shortage of hydrocarbons in the Universe.