Green Revolution

In about 1980, there was a new approach to agriculture called "Green Revolution". It involved the large-scale cultivation of new type of grain, and the extensive use of chemicals and farm machinery. Actually, this method is intended to increase food production to keep up with population growth. But it seems not to be successful. There are some reasons for this. One reason lies in the expense of the new farming methods. Farmers must use large amounts of expensive chemical fertilizers. They also need to use expensive chemical insecticides since the new grains are more easily damaged by insects. Expensive watering systems are also necessary for these grains, especially in drier areas. As the result, many farmers can not afford to buy all the chemicals and equipments. Finally, it can be concluded that the methods of Green Revolution do not meet the needs of the world's hungry people. So, goverments and farmers need to find another solution to solve the above problems.