Carbon‐dioxide removal (CDR) technologies offer the potential to contribute to the restoration and protection of natural ecosystems, the achievement of development goals and the safeguarding of human wellbeing. However, these technologies can also present risks to biodiversity, particularly those techniques that depend on large‐scale manipulation of ecosystems and earth‐system processes. Debates around the development of these technologies have historically focused on the dichotomy between the need to expand the knowledge base on all options related to emerging technologies, and the concern that research represents a slippery slope to deployment. This paper introduces a new approach to governing CDR research – one based on threat identification. We present a framework for assessing the impacts (positive or negative) on biodiversity and ecosystems from a spectrum of CDR interventions, so as to prioritize research to those CDR options that present minimal threats to biodiversity. Application of the framework indicates that while many CDR interventions present threats to biodiversity, certain options, such as regenerative CDR, may have positive impacts.

中文翻译：

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二氧化碳清除与生物多样性：威胁识别框架

二氧化碳去除（CDR）技术具有为恢复和保护自然生态系统，实现发展目标以及维护人类福祉做出贡献的潜力。但是，这些技术也可能给生物多样性带来风险，特别是那些依赖于对生态系统和地球系统过程的大规模操纵的技术。从历史上看，围绕这些技术发展的争论主要集中在两方面：需要扩大与新兴技术有关的所有选择的知识库，以及担心研究代表着部署的滑坡。本文介绍了一种管理CDR研究的新方法-一种基于威胁识别的方法。我们提出了一个框架，用于从一系列CDR干预措施中评估对生物多样性和生态系统的影响（正面或负面），以便优先研究那些对生物多样性造成最小威胁的CDR选择。该框架的应用表明，尽管许多CDR干预措施都对生物多样性构成威胁，但某些选择（例如再生CDR）可能会产生积极影响。