Well, also, increased trans-oceanic shipping (lots of old ships still use bunker fuel, some of the nastiest fossil fuel on the market) and increased air travel and also plus too a bunch of wars keep happening.
And that means replacing tens of thousands of old ICE engines. Which means spending money. Which private industry hates.
So don’t hold your breath waiting for any of this shit to change. But do hold you breath around bunker fuel, because jesus fucking christ that shit is gross.