We are in the midst of terrible ecological devastation. Raising animals for food is the single greatest human-caused source of destruction to our environment. It is the largest source of greenhouse gases, land use and degradation; the number one source of water pollution and rainforest deforestation. It’s also a major contributor to air pollution, ocean dead zones, habitat loss, and species extinction. And when we include all the resources that go into raising animals for food – the land, fertilizers, pesticides and insecticides, fossil fuels and freshwater – animal agribusiness is shockingly inefficient and a costly and wasteful use of our limited natural resources. Veganism is the solution.