The interdisciplinary exchange in climate engineering research offers a unique opportunity to make assumptions more explicit for such research projects. While making assumptions explicit is the standard in all disciplinary sciences, some assumptions in the context of societal challenges can only be usefully unveiled, discussed, and verified from the perspective of other research disciplines. Results from successful interdisciplinary collaborations are then more accessible and more generalizable to actors beyond the confines of the academic community. We aim to illustrate how interdisciplinary exchange helps to unveil assumptions in research endeavors and why this is important for successful interdisciplinary collaborations. We therefore follow different stages of the German Priority Program on Climate Engineering (SPP 1689), which we use as an example case of a successful interdisciplinary project. SPP 1689 focused on risks, challenges, and opportunities of Climate Engineering from the perspectives of numerous disciplines. Major results were that the initial assessments of technologies had to be sobered, the consideration of trade-offs is crucial for the potential assessment, and governance issues appeared larger than previously considered. From the reflections of SPP 1689, we conclude with three lessons learned: (1) The project profited from egalitarian organizational structures and communicative practices, preventing the predominance from single disciplines. (2) Within the project continuous efforts were undertaken to foster interdisciplinary understanding. In addition, the flexible project structure allowed for the accommodation of research needs arising as a result of these exchanges. (3) SPP 1689 offered early career researchers a platform for professional exchange on common challenges and best practices of being a part of an interdisciplinary research project.

中文翻译：

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通过跨学科审查揭示假设：德国气候工程优先计划的观察结果 (SPP 1689)

气候工程研究的跨学科交流为使此类研究项目的假设更加明确提供了独特的机会。虽然明确假设是所有学科科学的标准，但在社会挑战背景下的一些假设只能从其他研究学科的角度有用地揭示、讨论和验证。成功的跨学科合作的结果将更容易被学术界之外的参与者所接受和推广。我们旨在说明跨学科交流如何帮助揭示研究工作中的假设，以及为什么这对成功的跨学科合作很重要。因此，我们遵循德国气候工程优先计划 (SPP 1689) 的不同阶段，我们将其用作成功的跨学科项目的示例案例。SPP 1689 从众多学科的角度关注气候工程的风险、挑战和机遇。主要结果是对技术的初步评估必须清醒，权衡的考虑对潜在评估至关重要，治理问题似乎比以前考虑的要大。根据SPP 1689的反思，我们总结出三个教训：（1）该项目受益于平​​等主义的组织结构和交流实践，防止了单一学科的优势。(2) 在项目内不断努力促进跨学科理解。此外，灵活的项目结构可以满足因这些交流而产生的研究需求。(3) SPP 1689 为早期职业研究人员提供了一个平台，就共同挑战和作为跨学科研究项目一部分的最佳实践进行专业交流。