Who were the SECRET 28 who ended all climate debate at the BBC?

The Register
"This seminar is historically significant. The BBC's global reputation for news reporting stems from its unshakable impartiality; even in wartime its commitment to maintaining evenhandedness has occasionally enraged British politicians (and sometimes servicemen). Following that 2006 seminar, however, the corporation made a decision to abandon impartiality when covering climate change - and that's according to the BBC Trust. This was an unprecedented decision for the BBC in peacetime."