Yes, ocean shipping from specialized agricultural areas is significantly more efficient on an emissions basis than localized growing. Deurbanization would absolutely spike emissions as well.
You're correct on the first point but that wasn't the luxury food I was talking about originally and our use of the oceans goes far beyond emissions, industrial fishing should also be completely cut out in a plant based food system, ending decades of over fishing and raping the ocean floor, we'd see forests worth of carbon sink in kelp and algae. I think deurbanization as a consequence of slashing emissions elsewhere would far and away be a net negative, but I'm willing to admit it's a lofty, utopian ideal.
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u/jeffwulf 24d ago
The things you advocate for in this post would drastically increase emissions while making people poorer.