Food demand is expected to rise by around 50% in the next 20 years, but land for producing it is becoming increasingly scarce. Currently, over 70% of agricultural land - an area as large as the Americas - is used up farming livestock for human consumption. In addition, the costs of rearing, transporting and processing these food sources are taken into account, the enormous financial and environmental inefficiency of traditional farming methods becomes clear.
Furthermore, not all 7 billion of us get an equal share. Unaffordability, regional scarcity and lack of food security due to unfavourable socio-economic conditions mean that many people around the world often go without.