>>"Bottom line - truth is, the so called "experts" do not know what the he!! is going on..."<<
And theory or speculation is just that... a wild guess.
My point of posting things like this is the linear and singular aspect of the "scientific" thought and how ludicrous it is... I believe that there is no single cause, although there may be a single trigger... for example, perhaps man made and natural activities that produce an inevitable and unstoppable cycle...