The Definition of Sustainability

A popular definition of sustainability originated from a 1987 UN conference which defined sustainable developments as those that “meet present needs without compromising the ability of future generations to meet their needs”(WECD, 1987). In other words, sustainability means that our human impact must leave this planet as we found it or improve it so those who follow us will have the same opportunities we have had. Throughout our 150,000-year existence, we have never done that.