Extreme temperatures claim more lives than any other weather-related event, posing escalating socio-technical and governance challenges that few urban communities have addressed in a systematic, coordinated and comprehensive way. Scholars have only recently begun to investigate the granular scales at which distributions of thermal risk are produced, people's individual subjective thermal experiences and environmental justice dimensions of the hazard. Advances in research pave the way for concomitant improvements in management and policies, but bridges are needed to connect the thermal vulnerability knowledge base with place-based protective practices that are climatically, politically and culturally appropriate. The research presented in this paper uses actor-network theory (ANT) to describe the planning phase framework of a socio-technical collaborative for managing thermal extremes. The Thermally Resilient Communities Collaborative (TRCC) is a framework for planning and test-bed design phases of a thermal management system. Drawing lessons from two case studies, the framework examines how socio-cognitive spaces for collaboration change with technical and policy disruptions, and provides a way to design experiments that test how technical and governance interventions can enable collective action around urban thermal management.
Practice relevanceThermal extremes claim more lives than all other weather events and pose an escalating socio-technical challenge. Often the problem is exacerbated by lack of clarity about organizational responsibilities and coordination between local governmental departments or agencies. The TRCC framework can be used to understand current practices, identify data gaps and create opportunities to engage in cross-sectoral management. This approach engages actors in identifying built environments and societal practices that create hazardous indoor and outdoor thermal conditions, develops effective ways to convey microclimate information and peoples' subjective thermal experiences to responders and prevention planners, and elevates experiences of marginalized communities. The TRCC describes how governance networks are harnessed to solve collective action problems by integrating new data, technology, and governance capacities. Two case studies indicate how this process was used to create capacities to protect vulnerable people from the impacts of extreme temperatures in two US cities: Tempe, Arizona, and Buffalo, New York.Thermally resilient communities 219 1. Background Thermal extremes pose an escalating socio-technical and governance challenge in cities across the globe. In the United States, prolonged periods of heat and cold claim more lives than all other weather-related events (Berko et al. 2014) and have significant impacts on urban ecosystems and infrastructure. Approximately 30% of the world's population is exposed to deadly heat and humidity for at least 20 days per year, and that percentage is expected to increase to 48-74% by 2100, depending on what emissions scenario occurs (M...