Who were they? I've checked Dr Murray and Zanna Robinson. They never seem to have been here, except to interact with Act on CO2. 
HI Cass
The only reason I joined Authonomy initially, was to enter the Act on Climate Change comp, so it must have been available to all at the time who weren't regular members.
I remember being cross at the beginning because the rules asked for a story or fairy tale. i entered an adult story which got listed but I didn't get anywhere with it. Waste of time but it lead me here, so I'm grateful for that.
Writingmum