Earth Hour This Saturday!

I was reminded of the fact that Earth Hour is fast approaching when, on my way to Krishna Lunch, I was accosted by a polar bear bearing Earth Hour leaflets. I said, "Excuse, Mr. or Mrs. Polar Bear, does this mean I have to unplug my refrigerator, as well?" Because that was a question that had come up in discussion of Earth Hour. I was reassured in proper polar bear, I guess, with a paw swipe (not at my head, however) that it was not necessary.