The definition of “sustainability” is the study of how natural systems function, remain diverse and produce everything it needs for the ecology to remain in balance. Sustainability takes into account how we might live in harmony with the natural world around us, protecting it from damage and destruction. Sustainability is not just about the environment; it’s also about our health as a society in ensuring that no people or areas of life suffer as a result of environmental legislation, and it’s also about examining the longer term effects of the actions humanity takes and asking questions about how it may be improved.

In 2005, the World Summit on Social Development identified three core areas (“Environmental Protection”, “Social Development” and “Economic Development”) that contribute to the philosophy and social science of sustainable development. These three pillars in many national standards and certification schemes form the backbone of tackling the core areas that the world now faces.