Dear author,

Thank you very much for your submission as a brief communication to the NHESS journal. I think the paper fits within the scope of the journal; however, I have some questions and remarks.

Firstly, what I find missing is a clear problem statement and an explanation of why we need to re-think and re-start the science-policy interface for the implementation of the Sendai Framework. What is the actual problem? How does it work at the moment, and why does it not work currently? This remains very unclear in the current version. In addition, why are you mainly focusing on the scientific part while largely excluding the non-academic perspective?

Secondly, please reflect on your recommendations: why do we need these recommendations? What is new in them compared to what has already been known for more than a decade? Many of your points are already well known and have been discussed for a long time, both within and outside the scientific community.

Thirdly, why did you choose the concept of the science-policy interface without including more recent discourses? Why is the literature on transdisciplinary research, team science, and science-society interactions not included in your discussion? These areas provide a wide range of very interesting and useful concepts and ideas for changing the relationships and interactions between academia, policymakers, and non-state actors.

Fourthly, your recommendations are very broad and undefined. For example, regarding the point “a clear and independent coordinating mechanism, etc.”: why and who would be responsible for it? How should it be organized and funded? Who provides the resources? Who has the capacity to conduct it? Who is liable for the actions? How do you ensure accountability and legitimacy? These aspects need to be addressed for each of your recommendations.

Fifthly, please reconsider most of your suggested concepts. For example, learning: what do you mean by “learning” (single-, double-, triple-loop learning, or something else)? Regarding the “design and delivery of activities” on page 5: which activities, and how? Or the thematic groups on page 7, such as EWS or risk communication: what exactly should they do, and on which topics?

Lastly, please reflect on your figures. None of them are particularly helpful in clarifying what needs to be changed, what needs to be done, who should do it, or who is responsible for the transformation process.

The brief communication raises very important questions about the science-policy interface (SPI) in global DRR processes. Several examples are given of how this interface seems to be stagnating, and that interest groups other than scientists were more prominent during the last global platform meeting.

The ideas and recommendations presented are relevant and should be seen as input to an important discussion on the topic. The recommendations under 4.2 and 4.3 are more logical and well presented, while those under 4.1 need more elaboration and clarification. For example, are there potential disadvantages of organising a top-level scientific organisation (4.1a), parallel to the policy one? It is stated that this recommendation is not resource-intensive (row 136) – a claim that needs to be justified. The various consultations proposed in Figure 1 would likely require significant resources. While Figure 1 identifies the different actors and bodies, it is difficult to follow how the proposed processes will take place. An alternative would be to exclude 4.1 and Figure 1 from the paper to give more focus to 4.2 and 4.3.

It is clear that the author’s scope is on the global mechanisms of SPI, but it would also be interesting if the author could reflect on top-down versus bottom-up perspectives – whether the global level is an appropriate level for an effective SPI. What could be the reason for the stagnant global SPI? Could SPI be done at other levels and systematically brought to the global level? This would be partly in line with the recommendations under 4.2 and 4.3, as I understand them (to summarize and communicate research in new ways, etc.).