In 2050 the world population will increase by about 35%, therefore to feed the entire population agricultural production will have to double. Intensive agriculture is a major contributor to global warming because it emits greenhouse gases, such as methane produced by factory farming and the carbon dioxide that results from tree-felling of rain forests in order to clear land for cultivation or use it as a pasture.
Agriculture, as well as factory farms, represent the largest source of water consumption and water pollution and accelerates the loss of biodiversity. For these reasons, agriculture poses important environmental challenges, made even more pressing by the increasing need for food and energy worldwide.
Moreover, the trend of an economic development model based on the use of unlimited resources of the planet and the globalization process that has profoundly changed the lifestyle of human communities is causing severe impact on environment. Climate changes, pollution of soil, air, quality of life, people and the food that they take on, represents a major threat to the planet and human communities, encouraging the rise to imbalances and severe food shortages and emerging diseases related to dietary intake.