What is Sustainability? Primary essence of an exploding practice

We hear about sustainability everywhere, textiles, non-profits, business systems, agriculture and water. What does sustainability mean, and how does it act with such diversity. Sustainable means: The ability to sustain systems that will enhance rather then degrade our living and future generations . Currently the planet is operating on an unsustainable level, we are using more resources then we have." Historically, humanity has responded to a demand for more resources by trying to increase supply. Sustainability, instead, applies demand management of all goods and services by promoting reduced consumption, using renewable resources where possible, and encouraging practices that minimise resource intensity while maximising resource productivity. Careful resource management is applied at many scales, but especially at the levels of economic sectors like agriculture, manufacturing and industry as well as to individual goods and services and the consumption patterns of households and individuals".^{[51][52]http://en.wikipedia.org/wiki/Sustainable#cite_note-51}

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