The term sustainability is used to broadly indicate initiatives and actions aimed at the preservation of a particular resources.
However, it refers to four distinct areas: human, social, economic and environmental – known as the four pillars of sustainability.
A process of change in which the exploitation of resources, the direction of investments, the orientation of technological development, and institutional change are all in harmony and enhance both current and future potential to meet human needs and aspirations.
The World Commission on Environment and Development.
Sustainability is an essential part of facing current and future global challenges, not only those related to the environment.