I don’t really believe in tokenism.
If the worlds cod stocks are running low then eating four fish fingers instead of five isn’t going to save them. Especially if you only do it on one day a year.
If world petrol supplies are in crisis then using a push bike for one hour a year isn’t going to do much.
So switching off non essential lights for one hour isn’t going to achieve anything. It’s a token gesture.
Why not go the whole hog?
What I would propose is that every country in the world sign up to this. And at a predetermined time, all power stations are shut down.
Of course we could throw in the entertainment factor and not forewarn the worlds population when this is going to happen. That would be fun.
I didn’t save any electricity on Saturday. At 8pm I just put my clocks forward by an hour and in an instant, my period of darkness was over.
Two birds with one stone as it were.