Is @IPCC_ch going to #unfccc #cop18 or not? @GLFT says no. An IPCC e-mail says yes: 

Nov. 14:

Dear Colleagues,

The IPCC is organizing a background briefing for media during COP18 on how it operates, and in particular how it produces reports.
The briefing will take place on Friday 30 November at 15.00-16.30 Doha time.
This background briefing is not intended to generate any stories. It will not give any details of findings of the forthcoming Fifth Assessment Report (AR5), which is still being produced.
However, participants will have a good understanding of how the IPCC works when they come to write about AR5, which will appear in four installments between September 2013 and October 2014. This should provide important context for your stories, generate ideas for background material, sidebars and fact boxes, and clear up some of the misunderstandings about the IPCC. The briefing will be informal, and questions are welcome.
If you will be in Doha for COP18 and would like to attend, please let us know by sending an email to Places are limited so it is necessary to register in advance. 
Looking forward to meeting you in Doha. 

best wishes
Jonathan Lynn
Head of Communications and Media Relations
IPCC Secretariat
c/o World Meteorological Organization
7 bis Avenue de la Paix
CP 2300 - CH 1211 Geneva 2