This paper argues for a broader approach to understanding urban climate governance that goes beyond institutional structures to include social and technical practices. It introduces the concept of "climate change experiments" as purposive interventions in urban socio-technical systems aimed at mitigating and adapting to climate change. The authors develop a framework for analyzing these experiments, drawing on three concepts: governance experiments, socio-technical experiments, and strategic experiments. They use this framework to analyze a database of 627 urban climate change experiments in 100 global cities, examining when and where these experiments occur, the relationship between social and technical aspects, and the actors involved. The findings suggest that experiments create new political spaces within cities, blur public and private authority, and are primarily driven by technical interventions in infrastructure networks. The paper concludes by highlighting the need for further research on urban climate change experiments, emphasizing the importance of understanding their diversity, practical implementation, and implications for urban governance and life.This paper argues for a broader approach to understanding urban climate governance that goes beyond institutional structures to include social and technical practices. It introduces the concept of "climate change experiments" as purposive interventions in urban socio-technical systems aimed at mitigating and adapting to climate change. The authors develop a framework for analyzing these experiments, drawing on three concepts: governance experiments, socio-technical experiments, and strategic experiments. They use this framework to analyze a database of 627 urban climate change experiments in 100 global cities, examining when and where these experiments occur, the relationship between social and technical aspects, and the actors involved. The findings suggest that experiments create new political spaces within cities, blur public and private authority, and are primarily driven by technical interventions in infrastructure networks. The paper concludes by highlighting the need for further research on urban climate change experiments, emphasizing the importance of understanding their diversity, practical implementation, and implications for urban governance and life.