Technologies used for offshore oil exploration, in increasingly remote and extreme environments, potentiate new environmental threats in contemporary societies. In this context and from a theoretical-analytical perspective associated with Environmental Sociology, based on qualitative research results developed between 2013 and 2016, this article aims to comprehend the treatment of Pre-salt environmental threats in Brazil, a sociotechnical enterprise considered as strategic for national

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... nt from the governmental point of view. The researchers argue that the possible environmental consequences, even in face of unquantifiable uncertainties, were addressed, mainly from a perspective of measurable and controllable risks, in two of the main stages of the Pre-salt environmental arena: media and environmental licensing process. This treatment did not encourage a consistent public debate on the issue nor any governmental actions about possible unpredictable and uncontrollable consequences that characterize the technological systems, as represented by the Pre-salt.