Interests: American Literature

Selected Works: Literary Transcendentalism (1973), New England Literary Culture (1986), The Environmental Imagination: Thoreau, Nature Writing, and the Formation of American Culture (1995), Writing for an Endangered World: Literature, Culture, and Environment in the United States and Beyond (2001), Emerson (2003), and The Future of Environmental Criticism (2005). He is co-editor, with Wai Chee Dimock, of Shades of the Planet: American Literature as World Literature(2007)