This session will directly address a common shortcoming of climate and health interventions: it is difficult to truly change decision-making processes, change behavior, and evaluate effectiveness. This session will feature current research on, and narratives about, and approaches to doing this in some of the most vulnerable communities. Each presentation will focus on a specific decision-maker class, a population they serve, and the methods they use to truly change understanding and compel action to support vulnerable communities. All presentations will also demonstrate how these changes are evaluated and how learning from each extreme heat event and enhancing resilience can be built into systems of climate information and decision making.