Another thought, related.

Without modern agricultural methods (and I include "organic" farming) and distribution means, vegetarianism and especially veganism would be impossible.

By the way, I had a lovely bowl of buffalo (American bison) stew for dinner.

No, I bought the meat at the local supermarket. It's far less fatty than beef and free of antiobiotics, etc. Tastes very good, too -- as long as you treat it with the respect you should treat ALL food. Buffalo are farm raised, but allowed to graze freely on prairie grasses and slaughtered (by shooting) where they graze.

My favorite breakfast sausage, availabe only in Alaska as far as I know, is reindeer (domesticated caribou). Low fat and delicious -- and farm raised by the Yupik.