ABSTRACT Increasingly, a diverse set of policy communities, including those with defence, development and environmental mandates, frame climate change as a security threat. Most often this discursive formation labels climate change as a ‘threat multiplier’. This framing, however, is vague, linear and leaves many questions unanswered regarding how institutions can develop and implement policy that addresses the joint challenges of climate change, conflict and security. Utilising a mixed-methods approach, and grounding data collection in US policy communities, this article examines how policy actors and institutions integrate climate-security discourses into policy processes. The objective of this research is to provide direct insight into how the discourses and technical understandings of climate-security transition into policy priorities and implementation realities. This research identified three common approaches to climate-security: (1) A challenge of adaptation and resilience; (2) A potent political argument; and (3) An issue of limited importance and feasibility. These approaches, however, are inconsistent across sectors and within organisations, suggesting a lack of cohesion and considerable challenges in identifying and responding to climate change as a ‘threat multiplier’.

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从话语到政策：美国政策界对气候变化与安全的认识与方法

摘要越来越多的政策团体，包括拥有国防，发展和环境授权的政策团体，将气候变化视为安全威胁。最常见的是，这种话语形成将气候变化称为“威胁乘数”。但是，这种框架是模糊的，线性的，并且对于机构如何制定和实施应对气候变化，冲突与安全共同挑战的政策，还有许多问题没有答案。本文采用混合方法，并在美国政策社区中建立数据收集基础，研究政策参与者和机构如何将气候安全论述纳入政策流程。这项研究的目的是提供对气候安全的论述和技术理解如何转变为政策重点和实施现实的直接见解。这项研究确定了三种常见的气候安全方法：（1）适应和复原力的挑战；（二）有力的政治论点；（3）重要性和可行性有限的问题。但是，这些方法在部门之间和组织内部并不一致，这表明在识别和应对气候变化作为“威胁倍增器”方面缺乏凝聚力，并且面临巨大挑战。