United Nations Definitions
Definition of sustainable development
From Brundtland Commission
(World Commission on Environment and Development)
Convened by UN 1983
To address growing concern "about the accelerating deterioration of the
human environment and natural resources and the consequences of that
deterioration for economic and social development."
Sustainable development is development that meets the needs
of the present
without compromising the ability of future generations
to meet their own needs.
Definition of sustainability
From UN World Summit Convened by UN 2005
World Summit 2005 Report
At the 2005 World Summit it was noted that sustainable Development
requires the reconciliation of environmental, social and economic demands -
the three pillars of sustainability . This view has been expressed as an illustration
using three overlapping ellipses indicating that the three pillars of sustainability
are not mutually exclusive and can be mutually reinforcing.