Fifth Assessment Report (AR5)
The outlines of the Working Group contributions to the IPCC Fifth Assessment Report (AR5) have now been finalized. According to the timetable agreed by the IPCC at its 31st Session in Bali, Indonesia, in October 2009, the Working Group II contribution to the AR5, Climate Change 2014: Impacts, Adaptation, and Vulnerability, will be released in March 2014.
One scoping meeting to outline the AR5 was held 13-17 July 2009 in Venice, Italy.
Invited experts from governments and academia discussed and developed
the scope and table of contents for the three Working Groups
contributions to the AR5. They also identified major issues of
integration and synthesis.
During its 9th Session (26-27 October 2009), the IPCC WGIII finalized
and approved the chapter outlines of the WGIII contribution to the AR5.
The WGIII outline (pdf), as well as those for Working Groups I and II, was then accepted by the 31st Session of the IPCC on 29 October 2009 in Bali, Indonesia.
Starting in January 2010, governments and participating organizations
will be asked to nominate experts to act as authors and reviewers for
the three Working Group contributions to the AR5. Authors will be
selected by the IPCC Bureau, as stipulated in the IPCC procedures. The
writing process will start in the second half of 2010 for Working Group
I and early 2011 for Working Groups II and III.
In addition to meetings of Lead Authors for the AR5, a number
of expert meetings and workshops will be held to broaden the basis for
the assessment, for instance to address issues where limited peer
reviewed literature exists, as well as to address cross-cutting
matters.

