Raising awareness of climate topics, such as urban heat mitigation, requires communicating complex data to a broad audience. Data physicalization has emerged as a novel method to connect audiences to such complex topics through tangible forms while also leveraging interactivity to foster deeper engagement. This paper introduces an interactive climate physicalization prototype, designed to enhance communication and education of environmental information through hands-on engagement. The physical model depicts a 3D model of an urban neighborhood, with radiation data represented as a layered contour structure. The model incorporates three interchangeable climate adaptation scenarios, alongside an externally mounted, electronically driven solar path representation featuring multiple discrete LEDs that can be switched on and off at will. To investigate how people engage with the model, we conducted a hands-on qualitative lab study with 16 participants, using think-aloud, observational, and questionnaire protocols. Overall, participants responded very favorably to the model, highlighting the novelty of the visualization approach and its capacity to improve the interpretability of the presented information.
