Three-level hierarchical model to explain the emergence of integrated environmental conceptions in groups of stakeholders engaged in the environmental decision-making process &#40;considered the focal level of the model&#41;&#46; Processes of interaction &#40;arrows 1&#8211;7&#41; between pairs of individuals &#40;manager&#44; scientist&#44; science journalist and citizen&#41; in the lower level occur in fast cycles and represent the bottom-up mechanism that results in the emergence of changes at the focal level&#46; Policies and rules from executive&#47;judiciary powers&#44; research&#44; and communication institutions in the upper level impose constraints on the mechanisms in the lower level&#44; affecting the emergence of changes in the focal level&#46; Individuals involved in this process are usually managers from governmental agencies eventually with support from scientists &#40;A&#41;&#44; but other citizens may be invited to participate &#40;B&#41;&#46; Science journalists are not usually directly involved in this process&#44; but they may play a significant role by affecting the environmental conceptions of the other components&#46;