Based on his theory of animalrights, Regan concludes that humans are morallyobligated to consume a vegetarian or vegandiet. When it was pointed out to him that evena vegan diet results in the loss of manyanimals of the field, he said that while thatmay be true, we are still obligated to consumea vegetarian/vegan diet because in total itwould cause the least harm to animals (LeastHarm Principle, or LHP) as compared to currentagriculture. But is that conclusion valid? Isit possible that some other (...) agriculturalproduction alternatives may result in leastharm to animals? An examination of thisquestion shows that the LHP may actually bebetter served using food production systemsthat include both plant-based agriculture and aforage-ruminant-based agriculture as comparedto a strict plant-based (vegan) system. Perhapswe are morally obligated to consume a dietcontaining both plants and ruminant(particularly cattle) animal products. (shrink)

"Nobis argues that Singer's consequentialist approach is inadequate for defending the moral obligation to become a vegetarian or vegan. The consequentialist case rests on the idea that being a vegetarian or vegan maximizes utility -- the fewer animals that are raised and killed for food, the less suffering. Nobis argues that this argument does not work on an individual level -- my becoming a vegetarian makes no difference to the overall utility of reducing animal suffering in a context of a (...) huge industry and market unaffected by my actions. Nobis merges the insights of virtue ethics with consequentialism to argue that individuals can bring about more goodness if they have the virtues of compassion, care, and sensitivity to unnecessary cruelty and suffering. If one ought to be compassionate, sensitive to cruelty, resist injustice, and be morally integrated, then, Nobis argues, one ought to be a vegetarian or vegan.". (shrink)

Several authors have argued that act–utilitarianism cannot provide an adequate critique of buying meat because a single meat purchase will not actually cause more farm animals to be raised or slaughtered. Thus, regardless of whether or not the production of meat is inhumane to animals, someone who buys meat is doing nothing wrong. This argument fails to show that meat purchases are morally permissible, however, because it assumes that act–utilitarians would use actual utility in their decision to buy or not (...) to buy meat. I show that act–utilitarians cannot use actual utility as a decision procedure and must instead use expected utility to prescribe or proscribe actions. I then demonstrate how expected utility can be applied to cases of contributory causation, where many people seem morally responsible for causing something to happen. Buying meat is one case of contributory causation where the probability of any single individual's affecting meat production is slight, but the expected disutility of affecting that production is substantial. Thus, in its expected utility form, act–utilitarianism defeats the ‘causal inefficacy’ defence of buying meat [1]. (shrink)

For many people "animal rights" suggests campaigns against factory farms, vivisection or other aspects of our woeful treatment of animals. Zoopolis moves beyond this familiar terrain, focusing not on what we must stop doing to animals, but on how we can establish positive and just relationships with different types of animals.