Sustainability

Sustainability is a broad concept that includes different items. What is important to remember is how to make things last and by what means we're trying to do it. As a teacher, I think it is important to show students that the world is changing and that we have an important role in this evolution.
However, it is also essential that students understand that their actions can have consequences.

Therefore we must think about what we do and if it has repercussions...

Core concepts: 
 
Sustainability: Sustainability is defined as a requirement of our generation to manage the resource base such that the average quality of life that we ensure ourselves can potentially be shared by all future generations. Development is sustainable if it involves a non-decreasing average quality of life. [Geir B. Asheim, "Sustainability," The World Bank, 1994] 
Sustainability implies that an action can be continued indefinitely with little, or manageable, impact on the environment.

Ecology: This is the scientific study of the relationships that living organisms have with each other and with their abiotic environment. Topics of interest to ecologists include the composition, distribution, amount (biomass), number, and changing states of organisms within and among ecosystems. Ecosystems are composed of dynamically interacting parts including organisms, the communities they make up, and the non-living components of their environment. http://en.wikipedia.org/wiki/Ecology

Sustainable development:  Sustainable development is development that meets the needs of the present without compromising the ability of future generations to meet their own needs. It contains within it two key concepts. The concept of needs, in particular the essential needs of the world's poor, to which overriding priority should be given; and the idea of limitations imposed by the state of technology and social organization on the environment's ability to meet present and future needs. http://www.iisd.org/sd/