What does it mean to say that the environment is our “common heritage”? On one level this is a simple statement of fact: when we are born, we come into a world that is not of our own making. The air we breathe, the water we drink, the natural resources on which our livelihoods depend, and the accumulated knowledge and information that underpin our ability to use these resources wisely – all these come to us as gifts of creation passed on to us by preceding generations and enriched by their innovations and creativity.
Yet once we take seriously – as I do – the proposition that this common heritage belongs in common and equal measure to us all, we move beyond a positive statement of facts to a normative declaration of ethics. We move beyond an understanding of what is to an assertion of what ought to be.