First of all, sustainability is for everyone - not just environmental leaders, but you, your family and friends, your business, your school, your church, even your dog. It doesn't mean you can't buy or use anything ever again. It means considering the impacts of your purchases and choices, and finding lower impact alternatives.
Sustainability combines common sense practices - such as simply turning off lights - with intangible concepts, such as values, business models, and quality of life. It's about long term stewardship in a large scale context, so that our children and great grandchildren can enjoy the same quality of life we have today. It is the essence of "think globally, act locally".
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