What is Sustainability?sus路tain路a路ble s蓹藞st膩n蓹b(蓹)l/ adjective 1) The ability to be maintained at a certain rate or level. 2) Avoidance of the depletion of natural resources in order to maintain an ecological balance. Sustainability is not just about renewable energy and energy efficiency. Realizing true sustainability requires an understanding of the connections between the environment, society and