In December 2009 Copenhagen in Danemark is hosting what has been called the most important global summit since World War II, the United Nations Climate Conference, COP15.

UNESCO: Communication and Information

Another document shows that the police decided not to make a media appeal for information to assist the investigation during the Copenhagen climate summit (known as COP15), because "with COP15 still underway in Copenhagen raising awareness still further may have an negative impact on the conference".

BBC: Climategate: Operation Cabin files released by police