The lesson, ‘The Ailing Planet: the Green Movement’s Role’ focuses on the deteriorating health of the Earth because of human being’s growing lust to exploit all its natural resources. A Zoo in Lusaka, Zambia calls the man as the most dangerous animal in this world. Fortunately, the Green movement launched in 1972 has been responsible for a new awareness that has dawned upon the human race. There has been an irrevocable shift from a mechanistic view to a holistic and ecological view of the world. There is a growing worldwide consciousness that the earth itself is a living organism -an enormous being of which we are parts. It has its own metabolic needs that must be respected and preserved. But, today, its vital signs reveal a patient in declining health. In 1987, the World Commission on Environment and Development popularized the concept of sustainable development – a development that meets the needs of the present without compromising the ability of the future generations to meet their needs.
According to Mr Lester R. Brown, there are four biological systems, namely fisheries, forests, grasslands and croplands. They form the basis of the global economic system. They supply food to us and raw materials for our industries. But in large areas of the world, these systems are reaching unsustainable levels. Their productivity is being damaged.