Sustainability, in general terms, is the ability to maintain balance of a certain process or state in any system. It is now most frequently used in connection with biological and human systems. In an ecological context, sustainability can be defined as the ability of an ecosystem to maintain ecological processes, functions, biodiversity and productivity into the future. [Regional Ecosystem Office (U.S) REO]. Since the 1980s, the idea of sustainable human well-being has become increasingly associated with the integration of economic, social and environmental spheres. ...