I'm currently reading the book "Animal, Vegetable, Miracle" by Barbara Kingsolver. I highly recommend it to anyone interested in this topic. The book profiles her family moving to Virginia, and only eating locally (i.e., they know the person who grew it or raised it). A lot of nutritional, moral, and ecological benefits come from eating locally, and it explains it all in this book. I've recently cut out cows and pigs, but I still eat chicken at fish for now. Eventually, I'd like to be vegetarian.
"If this is going to be a Christian nation that doesn't help the poor, either we have to pretend that Jesus was just as selfish as we are, or we've got to acknowledge that He commanded us to love the poor and serve the needy without condition and then admit that we just don't want to do it." -Stephen Colbert