I also think its not going to do much when I see SO many lights on in empty buildings in the city EVERY night and HUGE signs on top of buildings wasting energy dusk til dawn.. I'm sure every little bit helps but it should be a regular thing to turn off lights, appliances etc all the time. But then again I'm sure a global thing like Earth Hour helps get that same msg of 'change your way of living' across to a huge audience anyway.
Same goes for the water debacle. I find it hard to swallow that I couldn't THOROUGHLY wash my damn car ONCE in the last 12 months, at home, because that small amount of water is going to make such a big difference as compared to all the water they use in industry and agriculture on a daily basis.. so it's either crappy auto laser wash which doesn't do anything, scratches in the paint from the brushes at the local car(/truck/4WD) wash, or I have to find the time to get the car washed somewhere decent like Final Inspection.. which I never seem to be able to find the time to get to.. esp being like a 25ish min drive from here *sigh*
Anyhoo Tomodachi (Japanese incl sushi train) at Melb Central is having dinner by candlelight between 8-9.. sounds like a nice way to spend Earth hour! And they have Entertainment Book discounts too.