Guardian: A few years ago when I asked a senior manager of a well known British firm whether sustainability was on the agenda, he replied: "Of course, sustainability of our product portfolio and growth is of major concern to us." Ah. Not the kind of sustainability I had in mind! The desire to maintain growth and profitability are at the forefront of most managers minds and always have been. Sustainability, in the sense that we need to find a way to manage our planet's resources for generations to come seems...