SREX Review Process

The IPCC depends heavily on scientific reviews by independent experts. Experts play a key role in identifying the key literature, ensuring a balanced interpretation, and placing topics in context. Expert review comments — each of which is considered in detail by chapter author teams assisted by review editors — form an essential foundation for a successful IPCC report.

The SREX Expert Review took place 26 July - 20 September 2010, with 629 targeted experts solicited to participate. With active engagement of IPCC Focal Points, the solicited reviewers list expanded to 857 subscribers, and ultimately 453 accepted registrants. This approach culminated in 220 sets of submitted comments, which served as basis for discussions at the Third Lead Authors Meeting (LAM3) held in Geneva, Switzerland (25-28 October 2010).

The SREX Government and Expert Review took place 7 February - 1 April 2011, providing the following categories of users the opportunity to comment on the second-order draft (SOD) chapters and the first-order draft of the Summary for Policymakers (SPM):

    • Government Focal Points
    • Observer Organizations representatives
    • Expert reviewers of the first-order draft chapters
    • Unsolicited experts requesting to participate in the SREX Government and Expert Review.

The review generated 10,570 comments, stemming from 162 spreadsheets. There were 552 registered expert reviewers, resulting in 107 sets of comments. WGII AR5 and SREX writing team members themselves submitted an additional 20 sets, Governments submitted 23 sets, and 8 Observer Organizations submitted comments.  The comments collected as part of the SREX Government and Expert Review served as basis for deliberations at the Fourth Lead Authors Meeting (LAM4), held in Gold Coast, Australia, from 16-19 May 2011.

The SREX Final Government Distribution (FGD) took place 22 August – 14 October 2011, providing the following categories of users the opportunity to comment on the FGD and second-order draft of the SPM:

    • Government Focal Points
    • Observer Organizations representatives

The FGD generated 1,131 comments, stemming from 38 spreadsheets. 31 Governments and 7 Observer Organizations submitted comments.

In accordance with Article 4.1 of Appendix A to the Principles Governing IPCC Work, all comments collected – complete with author annotations of disposition – will be posted on the Working Group II web site following the hardcopy publication of the Special Report (February/March 2012). Expert Review comments will be associated with the names of the people who provided them and with the responses from the relevant writing teams. For the Government and Expert Review, the same approach is taken for individual experts; however, IPCC Focal Point and Observer Organization comments are attributed to the submitting Government and institution, respectively.

 

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