Environmental impact bonds (EIBs) are innovative financial models included in the toolbox of impact investing that focus on environmental challenges. Recently, they have received an increasing amount of attention, in line with the expansion of environmental finance research. However, to date, there is no complete knowledge on this topic, either in theory or in practice. This article offers a concise view of the EIB landscape, based on a literature review, through the analysis of the structure and the evolution of the research field, as well as challenges and research opportunities. The results provide a roadmap for future directions, which is useful to help academics focus their studies on underinvestigated areas within this research niche.

环境影响债券（EIB）是影响力投资工具箱中包含的创新金融模型，专注于环境挑战。最近，随着环境金融研究的扩展，它们受到越来越多的关注。然而，迄今为止，无论是在理论上还是在实践中，都没有关于这个主题的完整知识。本文在文献综述的基础上，通过分析研究领域的结构和演变以及挑战和研究机遇，对欧洲投资银行的格局进行了简要介绍。研究结果为未来的方向提供了路线图，有助于帮助学者将研究重点放在该研究领域内未充分研究的领域。