We'll know over the next couple of days whether there was a significant reduction in power consumption this year. I remember that last year was quite significant, and it sent a strong message to John Howard that the Australian population in general wasn't as skeptical about climate change as he was.
I wonder whether Earth Hour does anything real and lasting or whether it is mere tokenism. I know that it raises awareness of climate change and what we could be doing to fight it, and that is no bad thing. But does it do anything more?