Update: Here is the full (final) WGI AR5 Report.
Update: the IPCC Press Release (27th Sept) is found here.
A press conference is scheduled for Friday (27th Sept) by the Intergovernmental Panel on Climate Change (IPCC) to present the Summary for Policymakers of the Working Group I (WGI) contribution to the IPCC Fifth Assessment Report (AR5) on climate change.
WGI deals with the physical and scientific basis for climate change. The Twelfth Session of Working Group I (WGI-12) is underway (23 to 26 September 2013) in Stockholm. This Session of WGI is convened to approve the Summary for Policymakers (SPM) of the Working Group I contribution to the IPCC Fifth Assessment Report (WGI AR5) and to accept the underlying scientific and technical assessment. 209 Lead Authors and 50 Review Editors from 39 countries and 600+ Contributing Authors from 32 countries contributed to the preparation of WGI AR5.
More information on the preparation of WGI AR5 is found here (IPCC).
Here is a useful BBC News video.
Here is the media release webpage.
The Working Group II (WGII) contribution (on impacts, adaptation and vulnerability) to the AR5 is scheduled for consideration in Yokohama, Japan, 25-29 March 2014.