Sustainability and corporate social responsibility may be topics of interest, but they have little to do with individuals. How can an individual contribute to a sustainable world, now and in the future? Businesses can have an effect by involving their employees in their sustainability policy. For them however, it is not enough to say that they work in a sustainable building. The more important point is whether their behaviour inside that building is sustainable. Facility managers can encourage this kind of behaviour. Author: René P.M. Stevens MSC Arch./MBA. First published in the Dutch Facility Management Magazine, November 2010.