The precautionary principle falls under a decisional context in evolution, marked by a multidimensional uncertainty as for environmental, economic, social, political or ethical consequences of the technological innovations. In French-speaking political science, it is understood as a strategic tool, a political response to the emergence of a new flow of societal uncertainty, mainly directed towards the hesitations of the scientific world. We argue that the precautionary principle redefines the way to manage scientific uncertainty in a society characterized by the blurring of the borders between political and subpolitical actors. Around its application, a line of fracture is drawn, which reduces the decisional breathing space of certain subpolitical entities and/or encourages others to act more.
Precautionary principle; Uncertainty