This World Resources Institute paper investigates the positive impact on the environment if we replace all animal products with plant-based foods. As the global population and incomes grow, overall food demand will increase by more than 50 percent by 2050. Demand for animal-based foods will increase by nearly 70 percent by 2050. Yet hundreds of millions of people remain hungry. Agriculture uses almost half of the world’s land, and agriculture and food are responsible for almost 25 percent of annual greenhouse gas (GHG) emissions.