12/18/2025
Seafood didnât become the âclimate-friendly" default because the evidence demanded it. Rather, the aquaculture industry spent decades positioning farmed fish as the responsible answer to overfishing and food-system emissions. Through coordinated marketing, policy pressure, and the promise of a âbetterâ animal protein, seafood was framed as a way to address climate impacts without questioning how much animal protein we consume in the first place.
In a new post, we trace how this story took holdâfrom the industry-branded âBlue Revolutionâ to the rapid global expansion of fish farmingâand why the environmental benefits were rarely scrutinized as production scaled.
That scrutiny is now catching up. As evidence mounts around feed inefficiency, pollution, emissions, and water use, itâs becoming clear that swapping one animal protein for another doesnât deliver the climate or ocean gains promised. As a result, a growing number of food and climate strategies are beginning to move in a different direction: reducing seafood and other animal proteins altogether, and relying more on plant-based foods that deliver far larger environmental benefits.
Defaults shape outcomesâbut they can change. The idea that seafood should anchor climate-aligned diets is loosening, and a more effective, ecosystem-aligned approach is already taking its place.
The aquaculture industry spun seafood as the green alternative to beef. But behind the marketing lies the same factory farming practices.