It is crucial to teach sustainability content to students. However, it is most often only taught in English at CSU. As Spanish is one of the primary languages spoken after English in Colorado and the United States, it is key to include Spanish in teaching sustainability. This project addresses the existing language gaps by incorporating sustainability as an organizing principle in Spanish courses and creates sustainability materials in Spanish to add to the university toolkit. This applied humanities project seeks to link language study to sustainability in order to provide Spanish language access to underserved populations.