The most widely quoted definition of sustainability is the "Brundtland definition" found in the 1987 World Commission on Environment and Development Report: "meeting the needs of the present without compromising the ability of future generations to meet their own needs."
The concept itself is not new. "The nation behaves well if it treats the natural resources as assets which it must turn over to the next generation increased, and not impaired in value," said Theodore Roosevelt in 1910. However, in recent years, the interconnected pillars of environmental, economic and social sustainability have gained a world-wide resonance and momentum. The goal of the Sustainability Program is for each INL employee to incorporate sustainability into their day to day thinking and strive to balance the three pillars.