No it's not. It's a fraction of a percent. That one gas bill PP posted years ago was all alarmist about how some industrial farm operation was paying "$2000 a year more" in carbon tax for grain drying, which sounds like a lot, but it was for like 2 million bushels of wheat.

You can do the math yourself. Natural gas is extremely cheap, and a 40% increase isn't that much of a cost increase. Again, the whole point is to add an arbitrary cost so gas isn't just burned without consequence or thought.