A few years ago, I was at the local natural food market and I overheard the manager explaining to a customer that the store did not and would not ever carry far

A few years ago, I was at the local natural food market and I overheard the manager explaining to a customer that the store did not and would not ever carry farm raised fish. He explained how farmed fish lived in horrible conditions and that the only moral and sustainable option is to only buy free range fish which were caught from the ocean, where fish were part of their proper ecosystem. From an intellectual, sustainability standpoint, I suspect that you are right and that farmed fish is the way to go. However, this is why I've completely factored guilt and morality out of my environmental decisions - No matter what I do, one of the employees at the natural food store will tell me that I'm killing the planet.