Three Basic Principles for Sustainable Development:

Principle of Inter-generational equity.
In considering any human activity, the effects on the ability of future generations to meet their needs and aspirations must be considered. This is sometimes also referred to as the principle of futurity.

Principle of Social Justice
This is concerned with current generations, where poverty is seen as prime cause of degradation. Sustainability requires that control over distribution of resources be more evenly exercised, taking account of basic needs and common aspirations. Wider participation in environmental strategies and policies is an integral element of achieving this aim, sometimes also known as intra-generational equity.

Principle of Transfrontier Responsibility
t the broad level, stewardship of the global environment is required. More specifically, transfrontier pollution needs to be recognized and controlled. Where feasible, the impacts of human activity should not involved an uncompensated geographical displacement of environmental problems. Rich nations should not over-exploit the resources of other areas, distorting regional economies and ecosystems. Similarly, the enviromental costs of urban activities should not be displaced across metropolitan boundaries, in effect, subsidizing urban growth.