During the last few decades, there has been an increasing consciousness and concern that the environment in which we live has deteriorated very fast. The air we breathe and the water we drink is getting polluted, rains are becoming erratic, forests are getting depleted, large number of plant and animal species are becoming extinct. The top soil is being eroded and even the ozone layer is getting damaged. There is also a danger of global warming. This environmental degradation threatens the very existence of human beings. The tragedy is that these problems are being created by human beings themselves. As you know, we receive all the life supporting materials from our environment but. In return, we do little for the environment. Basically, what is needed is that we should manage our environment properly. Our interference with environment should be minimal and we should ensure that it does not deteriorate and cause a challenge to our existence. We should, therefore, gather information relating to our environment so as to understand the danger it is faced with. We must assess and analyses carefully the impact of our activities on environment to adopt precautionary measures in advance. Therefore, there is a need to educate the people to develop a positive attitude towards the environment. In this unit we shall deal with challenges of environmental management. In the next unit you will study the effect of various developmental activities on environment.