Question

how we can achieve sustainable development

Answer 1

sustainable development is possible when we have good economy

Answer 2

Sustainable development is development that meets the needs of the  present without compromising the ability of future generations to meet  their own needs. It contains within it 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.