Well Put RicS.. there are so many places to look and some really good theories, everything from pole reversal to Tectonic plate movements.. yet we do not have enough geological data to point at any one avenue and be certain of that causes..but, we do know factually, there has been many very quick and sxtreme changes to the weather globally.
I do think there are far more than just a few reasons for global changes in weather patterns, and thinking that mankind is the cause, is nothing more than junk science at it's most refined level.
We know very little about this planet, or any other planet for that matter, pointing fingers at "this is the cause" or "that is the cause" with no foundation of facts is politics and/or junk science.. or the ultimate beast, a melding of the two.
