The growing urgency of environmental issues has transformed the educational landscape, calling for interdisciplinary approaches that integrate sustainability into language learning. The Eco-English Classroom explores how environmental narratives, poetry, and non-fiction texts can serve as dynamic resources for developing linguistic competence while fostering ecological awareness. This pedagogy positions environmental literature as a catalyst for critical thinking, empathy, and global citizenship. Experiential activities such as eco-poetry, debates on sustainability, nature journaling, and collaborative projects are emphasized, aligning language education with the principles of Education for Sustainable Development (ESD). Integrating environmental literature into English classrooms strengthens communicative competence while cultivating ecological literacy and social responsibility.