The continued rapid growth of cities inexorably, causing many to think that inevitably their environmental impact will worsen, raises a number of persistent questions. The urbanization and sprawl engulfing land with swallowing demands including more and more rural areas, has caused a highly dynamic and unorganized transit for peri-urban areas which are yet to be recognized clearly in legal or planning definitions, and more so in terms of their significance, in extending carrying capacity to the cities and urban activities, through the assimilative and supporting capacities of their ecosystems, besides buffering risk of natural and anthropogenic disasters, along with the implications of climate change.