What is ‘Sustainable Development’ and ‘Sustainability’?

By ISO definition. ‘sustainability’ is the degree of sustainable development in the context of the organization. ‘Sustainable Development’ is development that meets the needs of the present without compromising the ability of future generations to meet their own needs. It is the process is providing an enduring, balanced approach to economic activity, environmental responsibility and social progress. Sustainable development is about integrating the goals of a high quality of life, health and prosperity with social justice and maintaining the earth’s capacity to support life in all its diversity. These social, economic and environmental goals are interdependent and mutually reinforcing. Sustainable development can be treated as a way of expressing the broader expectations of society as a whole. (ISO 2600).
Sustainability is the capacity to endure. In ecology the word describes how biological systems remain diverse and productive over time. Long-lived and healthy wetlands and forests are examples of sustainable biological systems. For humans, sustainability is the potential for long-term maintenance of well being, which has environmental, economic, and social dimensions.
Healthy ecosystems and environments provide vital goods and services to humans and other organisms. There are two major ways of reducing negative human impact and enhancing ecosystem services. The first is environmental management; this is based largely on information gained from earth science, environmental science, and conservation biology. The second approach is management of human consumption of resources, which is based largely on information gained from economics.
Sustainability interfaces with economics through the social and ecological consequences of economic activity. Sustainability economics involves ecological economics where social, cultural, health-related and monetary/financial aspects are integrated. Moving towards sustainability is also a social challenge that entails international and national law, urban and transport, local and individual lifestyles and ethical consumerism.