Victorian England was both the world’s first industrial society and its most powerful global empire. Ecological Form coordinates those facts to show how one version of the Anthropocene first emerged into visibility in the nineteenth century. Many of that era’s most sophisticated observers recognized that the systemic interconnections and global scale of both empire and ecology posed challenges best examined through aesthetic form. Using “ecological formalism” to open new dimensions to our understanding of the Age of Coal, contributors reconsider Victorian literary structures in light of environmental catastrophe; coordinate “natural” questions with social ones; and underscore the category of form—as built structure, internal organizing logic, and generic code—as a means for generating environmental and therefore political knowledge. Together these essays show how Victorian thinkers deployed an array of literary forms, from the elegy and the industrial novel to the utopian romance and the scientific treatise, to think interconnection at world scale. They also renovate our understanding of major writers like Thomas Hardy, George Eliot, John Ruskin, and Joseph Conrad, even while demonstrating the centrality of less celebrated figures, including Dinabandhu Mitra, Samuel Butler, and Joseph Dalton Hooker, to contemporary debates about the humanities and climate change. As the essays survey the circuits of dispossession linking Britain to the Atlantic World, Bengal, New Zealand, and elsewhere—and connecting the Victorian era to our own—they advance the most pressing argument of Ecological Form, which is that past thought can be a resource for reimagining the present.