How is the issue of sustainability important for development

How is the issue of sustainability important for development ? Explain with examples.

Importance of Sustainable Development:

Sustainable development aims at fulfilling the needs of today without compromising the needs of the future generation.
Sustainability is the capability to use the resources judiciously and maintain the ecological balance.
It lays emphasis on environmental protection and check environmental degradation.
To stop over exploitation and over use of resources.