Earlier quoted context omitted.
Something in the ocean is definitely eating that leftover fish, not throwing it away is not a "free" change.
Yes, there are a few "trophic highways" in the sea. Carrion eating animals is one of them, and lobsters are one of its members. On the other hand fishermen do not discard so many small fishes as previously. Our cats and dogs will eat that. "ending factory farming as soon as possible" equals at this moment to "killing by famine a lot of surplus humans as soon as possible". We need to produce more food, not less, becau…
The article is talking about animal factory farming. Eliminating animal factory farming would free up more than enough resources to feed humans directly. The conversion from plant calories to meat calories is not very efficient.