His work focuses on the knowledge politics of global environmental change, including biodiversity and climate change. In his current research project, he compares urban climate change engagements in Northern Europe, India, and Japan. He has published widely in journals of social theory, science and technology studies, and environmental politics and is the author (with Torben Elgaard Jensen) of Bruno Latour: Hybrid Thoughts in a Hybrid World (Routledge, 2011).