Al Gore's talk has indeed been cancelled. His spokesperson says the cancellation is because of "all the events going on with the summit", whatever exactly that

Al Gore's talk has indeed been cancelled. His spokesperson says the cancellation is because of "all the events going on with the summit", whatever exactly that means. It could be that the real reason is the CRU kerfuffle, but so far as I can tell that's just speculation. Most of the linked article other than the first two sentences (1) is bullshit and (2) has nothing to do with the cancellation of Gore's slideshow and book signing.