By posing the problem of the relation between the degradation of the environment and the market economy, one presupposes a preliminary answer to a more general question: As a result of his “instincts,” is man, by necessity, predatory upon the natural order which surrounds him? If the answer to this question were affirmative, the current massacre of the environment would, at best, represent no more than an acceleration of mechanisms which are as old as the emergence of man, and, if the truth be told, any hope of the relationship between man and nature finding a new balance would be in vain. It is not very likely, however, that the answer would be a positive one. For one fundamental reason, nature is to a large extent a creation of man which has constantly modified itself throughout the history of man, ever since the invention of fire. What we call ‘nature’ is a structured, mobile complex of cycles which relate to our mineral environment and our living environment and which enable man to survive on earth; and it is impossible to ignore the action of man himself within these cycles.