Christian successfully defended his PhD at the University of British Columbia in January 2013. His dissertation "From cradle-to-grave at the nanoscale: expert risk perceptions, decision-analysis, and life cycle regulation for emerging nanotechnologies," evaluates the challenge of risk assessment and regulation of nanomaterials under high uncertainty. With the aim of informing the development of policies and practices to address these challenges, his thesis identifies gaps in regulatory coverage due to unique nanomaterial properties and high uncertainty, and explores the role of expert opinion and decision analytic tools in enabling risk assessment and management.
Christian specializes in the application of expert judgment in environmental assessment and risk contexts, the development of decision support tools, and the use of life cycle methodologies to understand health and environmental implications of technologies and projects.
Christian is also an active collaborator with the Center for Environmental Implications of Nanotechnology (UC-CEIN), and the Center for Nanotechnology in Society (UC-CNS), at the University of California.