Big is better (?)
About two years ago I watched a Swedish documentary that covered several hypothesis as to why so many fish has disappeared from the Baltic sea.
One of the concerns raised were that the fleet of smaller fishing vessels were being replaced by large factory trawlers that were a lot more efficient. They fished so much fish that a lot of it was sold as feedstock to salmon breeders.
They confronted one of the ship-owners and he argued that if you looked at CO2 emissions (per ton of fish caught), their fleet was actually _better_ for the environment -- climate change and all that.
I thought that was quite illuminating. I am not entirely convinced yet that we as a society are solving the right problems. I think we can all agree on that we need to sacrifice such jerks into the nearest volcano to appease the Climate Gods (Ruffin and Pussface).