"Simply put, ecocriticism is the study of the relationship between literature and the physical environment... ecocriticism takes an earth-centered approach to literary studies... Despite the broad scope of inquiry and disparate levels of sophistication, all ecological criticism shares the fundamental premise that human culture is connected to the physical world, affecting it and affected by it. Ecocriticism takes as its subject the interconnection between nature and culture, specifically the cultural artifacts of language and literature. As a critical stance, it has one foot in literature and the other on land; as a theoretical discourse, it negotiates between the human and the nonhuman."
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Definition from: Cheryll Glotfelty, "Introduction: Literary Studies in an Age of EnvironmentalCrisis," in The Ecocriticism Reader: Landmarks in Literary Ecology, Eds. Cheryll Glotfelty and Harold Fromm. University of Georgia Press, 1995.