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First external review of the IPBES nexus assessment (first draft of the chapters) now live!

  • Nexus assessment
Notification period
Download EM/2023/01

Dear IPBES members, observers and other interested stakeholders,

With reference to notification EM/2022/46 (14 November 2022), I am pleased to announce the start of the first external review of the thematic assessment of the interlinkages among biodiversity, water, food and health (nexus assessment), which is open from 9 January to 19 February 2023 (6 weeks).

The first external review, which focuses on the first draft of the chapters of the assessment, is one of the most important phases in the IPBES assessment process and is addressed to interested and qualified experts (referred to as “the expert reviewers”). The widest possible participation and most diverse engagement of interested and qualified experts, including scientists, decision makers, practitioners and other knowledge holders from all relevant disciplines and backgrounds, is vital to ensure the scientific quality, credibility and policy relevance of the assessment. Interested and qualified experts are invited to comment on text according to their knowledge and experience. The names of all expert reviewers will be acknowledged in the reports.

If you would like to participate as an expert reviewer in this external review, please follow these steps: 

  1. Register as a user of the IPBES website ( if you have not already done so; 
  2. Register to review the draft assessment at;
  3. Once registered, you will receive an email providing confidential access to the draft chapters and glossary of the assessment;
  4. Comments must be submitted in English using the Excel comment template available on the same webpage as the chapters; 
  5. The secretariat has a new system for submitting comments electronically; when you are ready to submit your comments, please upload your completed Excel template no later than 19 February 2023 at (you must be logged in to upload your template);
  6. If you encounter any technical issues uploading your comments template, please contact [email protected]

Two online dialogues with stakeholders, including practitioners, in the context of the first external review of the assessment, are scheduled during the review period:  

  • 9 February 2023: 9-11 a.m. CET  
  • 9 February 2023: 6-8 p.m. CET 

National focal points are welcome to attend the dialogues. Please note that you need to register as a reviewer to participate in the dialogues (step 2 above). The dialogue registration link will be made available by email after a successful registration as a reviewer. Please contact the technical support unit on capacity-building for technical questions regarding the online dialogues ([email protected]).

I thank you for your continued support to IPBES.

Your sincerely,

Dr Anne Larigauderie | Executive Secretary
Intergovernmental Platform on Biodiversity and Ecosystem Services (IPBES)