Farming is a mess, given its contribution to soil erosion, desertification and other maladies. However, fishing is even worse. At least the effects of farming have been readily observable, and remedial actions, while inadequate, are nonetheless developed and implemented to some limited degree. By contrast, an understanding that the oceans are stressed from pollution and overfishing is a more recent realization. WTO members have sought an agreement on fisheries, and now the U.N. is reportedly set to agree on an international treaty to protect and regulate the seas from overfishing and polluting discharges. Agriculture has been betting on aquaculture as a means of mutually resolving the burden of excessive productive capacity on land and exh...