What can a study of antiquity contribute to the interdisciplinary paradigm of the environmental humanities? And how does this recent paradigm influence the way we perceive human-'nature' interactions in pre-modernity? By asking these and a number of related questions, this Element aims to show why the ancient tradition still matters in the Anthropocene. Offering new perspectives to think about what directions the ecological turn could take in classical studies, it revisits old material, including ancient Greek religion and mythology, with central concepts of contemporary environmental theory. It also critically engages with forms of classical reception in current debates, arguing that ancient ecological knowledge is a powerful resource for creating alternative world views.