Natural resources are not inexhaustible. This awareness should touch each one’s inner self when one use natural resources of any kind. Exhausting of natural resources is not just a matter of disappearance of something, where as it is a bigger matter of upsetting nature’s equilibrium. As far as life is concerned, presence and proportion of everything in this world is important. It is that strange chemistry, which has been creating and nurturing life. Therefore maintaining nature’s equilibrium is vital to ‘calm and pleasant living’.
Practice it and make it a habit. Then the nature will make it sustainable by triggering necessary genetic engineering!