Matt McGrath's Copenhagen diary
The Βι¶ΉΤΌΕΔ's environment correspondent, Matt McGrath, is covering the Copenhagen climate summit for the Βι¶ΉΤΌΕΔ World Service.
In addition to keeping up with events at the conference, sending back reports and interviewing delegates, he will also be providing diary entries.
Matt describes one of the problems that arises when 45,000 people are accredited for an event that can only hold 15,000.
Today, Matt looks at the leaner, more cost-conscious nature of the conference.
Matt takes a look at the security arrangements at the Bella Conference Centre.
Today, Matt describes how summit jargon can turn into acronym hell - a kind of environmental alphabet soup.
In his first entry, Matt describes one of the frustrations facing the delegates.