"What emerges from our analysis is what we will describe as a process of unframing. By this we mean a deliberate effort on the part of PES researchers to expand discursive and analytic frames of reference and thereby control the peculiar performative quality of public debate on geoengineering. An initial attempt to establish geoengineering as a discrete and well-characterized object of deliberation, most clearly expressed in the 2010 Experiment Earth? dialogue, was followed by a second wave of dialogic experiments that actively sought to problematize geoengineering as a self-contained ‘engagement matter’ (Irwin et al., 2013). This process of unframing was supported by a series of methodological innovations in the conduct of public deliberation – from a redefinition of the role of (natural–scientific) experts in articulating the matter under consideration, to a conscious effort to blur the boundaries of geoengineering as a distinct object of debate."  P.403