Discussions driven by society regarding the preservation of the environment are increasingly necessary, especially when it comes to the Amazon biome, which has been facing degradation in this century. In this sense, the media can play an important role and contribute to building a more attentive society in regard to this matter. Thus, this research examined the discourses on the environment in seven video reports produced by the affiliate of Rede Globo in Mato Grosso, TV Centro América of Sinop, located in the northern region of the state, the Amazonian region. The set of selected video reports that formed the corpus of this research, started in 2016, when TVCA de Sinop expanded its coverage area and began generating content for 33 municipalities in the northern region of Mato Grosso, and continued until 2022. For this purpose, the video reports were transcribed to highlight the discursive markers and thus understand the process of meaning construction. The analyzed materials are publicly available on Globoplay, Rede Globo's streaming platform. Throughout the study, the implementation of television in Brazil, the emergence of Rede Globo and the Rede Mato-Grossense de Comunicação, as well as the colonization of Sinop and the historical processes involving the Amazonian region in the northern state, are contextualized. The objective was to analyze how the production of meanings occurs in video reports on the Amazonian environment, in the content produced in the northern region of Mato Grosso and broadcasted in the station's newscasts. The theoretical and methodological procedures that guide this investigation are under the perspective of historical materialism Discourse Analysis, mobilizing the concepts of discourse, ideology, ideological formations, effect of meanings, discursive formation, imaginary formation, among others, based on Michel Pêcheux, the French philosopher who founded the theory, and Eni Orlandi, the author of this theoretical perspective in Brazil. In this process, authors who address television journalism, such as Flavio Porcello, Cicilia Peruzzo, Nilson Lage, were also consulted to support the understanding of the analyzed material. The research concluded that, in the analyzed corpus, subjects related to Amazonian culture, tourism, geographical issues, and the peoples inhabiting the region were not explored, while agribusiness was highlighted without mentioning the Amazonian region as the geographical context. This tends to imply a silencing of the station concerning the Amazonian region, favoring agribusiness, which reveals a capitalist ideological formation.