Which of the following is true about the sustainability of our food system, including how we produce food and our food choices? (choose all correct answers) Group of answer choices Universal adoption of vegan diets is the best way to ensure that there is enough food for everyone in the future. Our food travels too far; transportation of food accounts for a large share of food system related greenhouse gas emissions. Food production contributes ~ 1/3 of global greenhouse gas emissions. Our high demand for animal products, especially beef in wealthy countries is unsustainable; livestock accounts for almost half of greenhouse gas emissions from food production. Decreasing (but not eliminating) our intake of beef would go a long way toward decreasing greenhouse gas emissions from the food system.