While reading the Traps Facing The Bottom Billion, I read the part about you disagreeing with air-freighted food, I asked why and decided to do a little research. Thankfully I do buy local, and generally only purchase what is in season, I do most of my grocery shopping at local farmers and meat markets and know that even my meat is being purchased from my local farmer. I hunt and fish for a good portion of my food as well. It’s rare that I buy fruits or veggies because I grow most of my own at home at can or freeze them, however, there is still a lot of fruits that I cannot grow the tropical ones anyways. But didn’t realize the negative impact air-freighted food could have. It’s not to say that I always know where my food comes from but will defiantly be more thoughtful when doing my shopping.
There is quite a few food documentaries on Netflix that discuss how and where our food comes from that will make you think twice while shopping. Food Inc. and Forks Over Knives are a couple good ones.

https://food-hub.org/files/resources/Food%20Miles.pdf