Expanding human population resulted into expanding needs of man. With the scientific progress and technological development man started utilising natural resources at much larger scale. Continuous increase in population caused an increase demand for resources. This created a situation when the non-renewable resources may come to an end after some time. In order to have maximum production, we have started even taking loans from the resources meant for future. That can not be paid back. As a result we would be using all those resources which are infact the property of future generation. It is a matter of much concern.