The tern “sustainable development” was used at the time of Cocoyoc Declaration on Environment and Development in the early 1970s. Since then it had become a trademark to certain international organisations dedicated to achieving environmentally benign or beneficial development. Sustainable development is such a concept that signifies that “rate of consumption or use of natural resources should be approximate the rate at which these resources can be substituted or replaced”. Sustainable Development means an integration of development and environmental imperatives. It also requires that a nation or society should be able to satisfy its requirements- social, economic and others- without undermining the interest of future generations. Countries of north use too many natural resources and such practice cannot continue along. Another Nature has been making available its resources and services as well as it are serving as receptacle for absorbing wastes for too long a time. We have to realize now that nature today is very fragile. Nature is finite. And experts have warned that it has reached to a critical threshold beyond which it would lead to Ecological Decline that would further lead to nothing but a disaster.

KEYWORDS: Sustainable Development, Cocoyoc Declaration, Environment and Development.