Culture and Climate Change: Assemblies is rethinking citizen participation in climate policy. As a collective of citizen-researchers from across the South Yorkshire region (including academics from the fields of communication, politics, architecture and art practice; climate-focused regional organisations; and diverse and underrepresented local communities within climate discourse), we are exploring the potential for speculative climate storytelling and novel forms of documentation within participatory democratic processes, in order to ask questions about how these might benefit and impact follow-on action post-climate assembly. Through participatory workshops, interactive documentary co-creation, and knowledge exchange activity we are testing the potential for collective narrative scenarios and climate future imaginaries to help us more deeply interrogate recommendations being put forward and how we might broaden citizen participation in relation to climate policy.