My original question was is when and where the sustainable development will be the development that meets the needs of the present without compromising the ability of future generations to meet their own needs? It contains two key concepts:
the concept of 'needs', in particular the essential needs of the world's poor, to which overriding priority should be given; and
the idea of limitations imposed by the state of technology and social organization on the environment's ability to meet present and future needs. Nowadays sustainable development and the key concepts of sustainable development left to be desired in the global era that is going around the world!