Co-designing a citizen science climate service

Interactive mobile technologies provide an emerging opportunity for citizens to engage with and enhance urban climate resilience, both as providers of locally situated data on climate variables, impacts and climate adaptation measures as well as to obtain information on local conditions and recommendations. This paper examines the process of co-designing a citizen science application for urban climate resilience in four European cities. Further, the paper studies if and how the system enables knowledge co-production to increase urban resilience following process principles for co-production of climate services and discusses the legitimacy, transparency, credibility, and relevance of the process. We further assess the role that a citizen science climate service could play as a boundary object in knowledge co-production. We draw on experiences from a co-design process that included municipal stakeholders from different sectors as well as municipal employees and civil society end-users involved in campaigns. This study identified a set of barriers and enablers for the co-design process and concludes that the CitizenSensing application can fulfil the role of a boundary object, but that the co-design process is a balancing act between navigating time constraints, including stakeholders' different and changing demands and perspectives while retaining a high level of flexibility and reflexivity.