I am a political theorist who applies the tools of this field to the critical analysis of social and environmental challenges and have worked with many others to develop a field that has come to be labeled "environmental political theory." My teaching and research examines ways that differences in meaning and value underlie these challenges, while advancing a critical analysis of structures of power and normative arguments for the transformation of social and political ideas and institutions. I am the author of two books (Political Nature: Environmentalism and the Interpretation of Western Thought; Engaging the Everyday: Environmental Social Criticism and the Resonance Dilemma) and the editor of the journal Environmental Politics, and other works.