The paleo diet certainly has an appeal for a small group of people, but there doesn't seem to be a place for bread. Paleo folks didn't eat bread (they never knew what they were missing) because there wasn't any. Michael Pollan, who probably knows more about food than any of us, tells us why it's okay to eat bread, but of course, you already know why.
Michael Pollan
Michael Pollan has written extensively about food and the environment, and I highly recommend all his books.