The general idea is that if you tax or price in the cost of doing the bad thing, these companies will try to optimize those costs down for the good of their sha

The general idea is that if you tax or price in the cost of doing the bad thing, these companies will try to optimize those costs down for the good of their shareholders, which would be a win-win. In the real world, you'll probably have a lot of cover up of this sort of thing, as the companies would find it cheaper just to not report they dumped pollution into the environment than to report it and have to pay for it. https://www.nytimes.com/2019/06/04/business/carnival-cruise-pollution.html https://www.nytimes.com/2019/06/04/business/carnival-cruise-...