I do not think so. I think the amount of money we earn from Bitcoin is many times the amount we pay for electricity. Besides, today there are many ways to help us create electricity. So, I think not too significant when using electricity for Bitcoin
I myself never think about it that how much electricity is needy by bitcoin, i am using it as normal and i never even feel any extra electricity that bitcoin may be using. To me i am no doubt getting a good profit from bitcoin, therefore i will even continue using bitcoin it it require a some extra electricity. Because i even want to continue getting profit from bitcoin.