For the first time in human history, the people have shown real concern for the environment. It is so because they have understood that human beings cannot survive if the systems of the earth fail. We now know that human life depends on four basic systems namely–fisheries, forests, grasslands and croplands. These four together along with water and air make our environment.
Hence, there is the need for the protection of these parts of the environment. Today, the human beings have brought the environment to a state from where it can be allowed to go down only at the peril of human society and indeed all living beings.