337). Using statistics, it illustrates the amount of land used for agriculture compared to other terrestrial environments. Agriculture occupies a large part of our environment. This “agricultural expansion has had enormous impacts on habitats, biodiversity, carbon storage and soil conditions. In fact, global agriculture has already cleared or converted…” (Jonathan & Navin, 2011, p. 338) large portions of diverse thriving ecosystems. Despite this, productivity is not increasing and "the allocation of crops to non-food uses, including animal feed, seeds, bioenergy and other industrial products, affects the amount of food available in the world" (Jonathan & Navin, 2011, p. 338). This allocation occurs more in developed countries. In developing countries, the majority of crops are grown for human consumption. In developing countries, yield gaps appear; these gaps can be closed if people adopt sustainable production methods. Once the gaps are filled, there will be no reason to further expand agriculture to others