They will no doubt be as inventive as they can with this. And by inventive, I don't mean genius. I mean they'll have bits of it here and there so we won't 'notice' it too much.
Thing is, any form of carbon tax is going to push up inflation. A carbon tax on diesel and petrol pushes up the cost of delivery of goods and thus pushes up prices here yet again. Our country is already expensive by European standards. Our tourism industry would be badly hit.
They may well add more tax to flights, thus making it harder for us to get the heck out of here!
Any way you look at it, it's hard to escape the fact that we are going back to the 80's.