This chapter, Closing Thoughts, draws us to the end of the exploration into climate security intelligence, discussing core principles, a strategic design framework, and the way ahead. Fundamentally, climate security intelligence is the knowledge needed to understand the intricate web of interactions between climatic events, their effects, and the responses they provoke. It begins with a foundation in the properties of climate—events and trends that unfold over time—causing harm or driving changes across a wide spectrum in foreign countries. These impacts may manifest in physical infrastructure damage, loss of personal property, shifts in landmass, disruptions to agriculture, urban transformations, and increased migration, to name a few. Foreign leaders, faced with these challenges, may respond proactively or reactively, often with unintended consequences that exacerbate the situation, but sometimes acting intentionally to further harm to others. From a domestic perspective, these climatic effects have security implications in two ways: directly, as harm or changes abroad spill over to threaten national or subnational security, and indirectly, through the actions of foreign decision-makers who worsen the effects of climatic effects. Climate security intelligence provides the framework and insights necessary to navigate these complex interactions, offering decision-makers the tools to anticipate and respond to both the direct and cascading effects of a changing climate.