Background of green food

After World War II, developed countries such as Europe, America and Japan have successively realized agricultural modernization on the basis of industrial modernization. On the one hand, it greatly enriched the food supply of these countries, on the other hand, it also had some negative effects. Mainly with the continuous input of a large number of agricultural chemicals into farmland, harmful chemicals are enriched in organisms through soil and water, and enter crops and livestock and poultry through the food chain, leading to food pollution and ultimately damaging human health. It can be seen that agriculture that relies too much on chemical fertilizers and pesticides (also known as "petroleum agriculture") will do harm to the environment, resources and human health, and this harm has the characteristics of concealment, accumulation and long-term.

1962, Ms. rachel carson of the United States took the measures taken in East Lansing, Michigan to eliminate beetles that hurt elm trees as an example, and disclosed various situations in which DDT caused harm to other organisms. A large number of trees in this city have been sprayed with DDT. Leaves fall to the ground in autumn, and earthworms eat them. After coming back in spring, robins ate earthworms, and almost all robins in the city died a week later. In Silent Spring, Ms Carson wrote: "Pesticides are widely polluted all over the world. Chemicals have invaded the water on which everything depends, infiltrated the soil and covered plants with a harmful film ... which has caused serious harm to human body. In addition, there is a terrible legacy that may not be detected within a few years, and may even have an impact on heredity, which will not be detected for generations. " Ms Carson's assertion undoubtedly sounded the alarm for the whole world.

In the early 1970s, the ideological trend of "organic agriculture", which spread from the United States to Europe and Japan and aimed at limiting the excessive import of chemicals to protect the ecological environment and improve food safety, affected many countries. Some countries began to adopt economic measures and legal means to encourage and support the development and production of pollution-free food in their own countries. Since the United Nations Conference on Environment and Development in Rio de Janeiro in 1992, many countries have started with agriculture and actively explored the sustainable development mode of agriculture to alleviate the serious pressure of petroleum agriculture on the environment and resources. Europe, America, Japan, Australia and other developed countries and some developing countries have accelerated the research on ecological agriculture. Under this international background, China decided to develop pollution-free, safe and high-quality nutritious food and named it "green food".