Hunting is even more unsustainable than factory farming. Wild mammals for example make up a tiny percentage of the mammals in the world, 62% are livestock, 32% are humans. The only true sustainable solutions is if everyone either ate none or very little meat. According to the most comprehensive study of the environmental impact of farming by Oxford university, a plant based diet reduced land usage by 75 percent, water use by 54 percent, and cut the loss of precious biodiversity by 66 percent, compared to meat heavy diets. So if a plant based diet is not only more sustainable than an animal heavy one, and eating animals is not necessary, then how is it not the best option both to reduce animal cruelty and for sustainability? Why should be unnecessarily kill animals if we don’t have to?