> Practically overnight it became impossible to buy drinks containing more sugar than the tax minimum limit. It wasn't illegal to sell them, but no corporation would waste money on a silly thing like taste.

Oh yes. Poland introduced a sugar tax recently, and I've never seen so many low-sugar offerings in the shops in my life. Marketing people of course got to work spinning this; a well-known brand of fruity beverages that advertises to children suddenly started highlighting how their products are healthy for children because they're sugar free. That's despite the fact that until few months earlier, they were the symbol of sugar-full beverages for children.

This is to say, profit motive is reality and sanity-bending, it should definitely be put to use through carbon taxation.

Yes, there it worked because there is a good alternative, healthier and same price, readily available.

There are many products on which society depend where the alternatives will have a similar CO2 footprint. Taxing these products will only serve to increase the base price.

Edit: I suppose what I mean to say is that adding a co2 tax shouldn’t become an issue for the lower incomes by raising prices while more well off persons can circumvent it somehow, further increasing the gap between poor and rich.