Excerpt: Growing concerns about global climate change have rekindled an age-old controversy about eating meat. Animal agriculture is frequently indicted as a major contributor to greenhouse gas emissions. However, animal agriculture is not without defenders, including those who claim that holistically managed livestock grazing systems could actually “reverse climate change”. Various studies suggest that the environmental impacts of food animal production differ significantly among management systems—particularly confinement versus pasture-based systems. Due to its complexity, this controversy will not likely be resolved by science. Instead, the wisdom of Indigenous peoples may prove more useful in deciding whether to eat or not eat meat.