To our state’s shame, Iowa and other corn belt states are still the largest contributors to the “dead zone” in the Gulf of Mexico, according to a new study.

The logical thing would be to impose more regulations on the use of fertilizers and other farming practices that contribute to the problem. But don’t hold your breath for any movement on those issues at the statehouse. After all, Iowa is an agricultural state and anyone who doesn’t like it can leave in any of four directions.