communities subsisting their life with sufficient acquisitions�

merely to sustain lives. Mother nature seems to be the

cornucopia vault whose subsidize will be indefinite for those

tiny lives. In reality, things do not happen that way. Values of

life change. Simply sustainability does not adequate and

"sufficiency" means more than enough.� People perceive

environment to ensure their own "sufficiency". and many times we cross the line where

nature needs to maintain its own sufficiency also. Depletion occurred thus chances of equity

subsided. When resources are not distributed properly, who is to be blamed ?� Were

Ethiopians wrong that settled down in their land ? Do people in developed countries have to

responsible for other poor countries' well-being just because they were born in the societies that

have better quality of life ? All men are not created equal in terms of opportunity, and natural

assets are not indefinitely suppliable. However, attempts were made to neutralize differences,

allocation all world population resources opportunity with the most similar standard for both

current generations and our posterity, and that was how Sustainable Development derived.

Mentioned in this review are some major threats to world citizen's sustainability which once we