Animal agriculture is a significant contributor to environmental degradation. Livestock production is responsible for approximately 15% of global greenhouse gas emissions, more than the transportation sector. Additionally, it requires vast amounts of land, water, and energy, and is a major source of water pollution. By choosing a vegan diet, individuals can significantly reduce their environmental footprint.

Animal agriculture is a major emitter of greenhouse gases, including methane and nitrous oxide, which have a much greater global warming potential than carbon dioxide. Methane is released from the digestive systems of ruminant animals such as cows and sheep, while nitrous oxide is produced from manure and nitrogen-based fertilizers used in feed production. By eliminating animal products from their diets, vegans can help mitigate climate change and contribute to a more sustainable future.

Animal agriculture is a major consumer of water. It takes approximately 1,800 gallons of water to produce one pound of beef, while one pound of lentils requires only 39 gallons. Additionally, animal agriculture contributes to water pollution through runoff from feedlots and manure storage facilities, which can contaminate waterways and harm aquatic ecosystems. By choosing a plant-based diet, vegans can help conserve water resources and protect water quality.

Animal agriculture is a leading cause of deforestation, as vast areas of land are cleared to create grazing pastures and grow feed crops. This deforestation contributes to climate change, biodiversity loss, and soil erosion. Furthermore, the use of synthetic fertilizers and pesticides in animal agriculture can harm soil health and pollute waterways. By opting for a plant-based diet, vegans can support sustainable farming practices that protect ecosystems and promote biodiversity.

Animal agriculture often involves the confinement and mistreatment of animals. Animals raised for food are often subjected to cramped and unsanitary conditions, lack of veterinary care, and painful procedures such as branding, castration, and tail docking. By choosing a vegan lifestyle, individuals can help reduce the demand for animal products and support farming methods that prioritize animal welfare.