The United Nations Framework Convention on Climate Change (UNFCCC) is the primary international forum for climate change policy. The following are meetings within the UNFCCC framework:

COP/MOP:
COP-11, Montreal, 2005
COP-12, Nairobi, 2006
COP-13, Bali, 2007
COP-14, Poznan, 2008
COP-15, Copenhagen,  2009

Subsidiary Bodies (SBI and SBSTA):
SBI/SBSTA 28, Bonn, 2008
SBI/SBSTA 29, Poznan, 2008

Ad Hoc Working Groups (AWGs): 
AWG-LCA1/AWG-KP5, Bangkok, 2008