While the modern concept of sustainable development is derived mostly from the 1987 Brundtland Report, it is also rooted in earlier ideas about sustainable forest management and twentieth century environmental concerns. As the concept developed, it has shifted to focus more on economic development, social development and environmental protection for future generations. It has been suggested that "the term ' sustainability ' should be viewed as humanity 's target goal of human - ecosystem equilibrium (homeostasis), while ' sustainable development ' refers to the holistic approach and temporal processes that lead us to the end point of sustainability ''.
when did the idea of sustainable development began
1987