This article addresses the importance of promoting ecological consciousness within the Faculty of Economics and Administration (FAEA) of the National University of Comahue, within the framework of Sustainable Development Goal No. 12: Responsible consumption and production. The main objective was to analyze the impact of an institutional intervention based on the installation of informational posters and awareness campaigns regarding student environmental behavior. A mixed approach was applied, using quantitative and qualitative techniques, and a non-experimental, cross-sectional, and descriptive design. The sample, defined by convenience, included 60 students who responded to digital surveys before and after the campaign. The intervention consisted of posters placed in common areas and publications on an Instagram account. The results showed significant improvements in three dimensions: greater understanding of the concept of responsible consumption, critical evaluation of the impact of plastics, and an increase in sustainable practices such as recycling. The qualitative analysis revealed that visual stimuli generated reflection among students. The discussion links these findings with previous studies on nudges and institutional campaigns, highlighting the effectiveness of simple and accessible strategies. It is concluded that brief and participatory interventions can generate significant changes in university environmental consciousness and strengthen institutional social responsibility.