Sustainable development (SD) is defined in the Brundtland Report as “development that meets the needs and aspirations of the present without compromising the ability of future generations to meet their own needs”. Thus, sustainable development is the organizing principle for sustaining finite resources necessary to provide for the needs of future generations of life on the planet. It is a process that envisions a desirable future state for human societies in which living conditions and resource-use continue to meet human needs without undermining the "integrity, stability and beauty" of natural biotic systems.