Several of my family members are cattlemen and farmers in Iowa. Debates over feed, sustainability, and such are of personal, immediate interest to them.
Here is an article a cousin posted by a young cattleman on being careful as we consider food source issues. Lacking much knowledge, I have no real opinion about this kind of thing, but think its good to hear from all sides. I learned some things about cows/beef by reading this article.
4 Frustrating Agricultural Messages