When you start talking environmentally sustainable meat production, you're talking about utilizing land and calories that would not be well utilized otherwise. Pastureland that is too rocky or arid for grain or vegetable production, grazed at a level that is sustainable for that land. Food waste and mast you can feed to pigs or goats but not people.
Scale is "a whole lot of meat" but "not much as Americans eat now".
When you start talking environmentally sustainable meat production, you're talking about utilizing land and calories that would not be well utilized otherwise. Pastureland that is too rocky or arid for grain or vegetable production, grazed at a level that is sustainable for that land. Food waste and mast you can feed to pigs or goats but not people.
Scale is "a whole lot of meat" but "not much as Americans eat now".