Every now and then at WUWT there is a hopeful comment (usually unanswered) asking about the mysterious society: "The Open Atmospheric Society" or OAS (but not the other OAS). There is irony in the name, because despite the word "open", as far as I am aware not a single person has ever been identified as a founder or board member or executive director or other employee. It's a secret open society.But all that secrecy is about to end. Today's the day when all should be revealed. Here's some background to whet your appetite and tide you over while you wait with breathless anticipation.