Ambiguity, complexity and uncertainty surrounding the hazards of hydrogen and public views of emergent risks

New technologies and emergent risks pose special problems for risk governance and regulation. This paper outlines some of the uncertainties about the hazards of hydrogen energy and examines qualitative evidence from recent deliberative Citizens' Panels in England and Wales about hydrogen energy technologies. It is shown that laypeople express ambivalent and contradictory views about, and critical trust in, experts' views about hydrogen. The findings are discussed in relation to the International Risk Governance Council framework for emergent risks characterised by ambiguity, complexity and uncertainty.