It is now generally thought that the aberrations occurred because of the 5 April – 15 April 1815 volcanic eruptions of Mount Tambora[4] on the island of Sumbawa in the Dutch East Indies (in today's Indonesia) which ejected immense amounts of volcanic dust into the upper atmosphere.

From Wiki: Year without Summer

And on the topic of GD: how about here, Real Climate April 2006 admitting that GD makes the GW model "complex"?

Or here, the NOVA documentary?

Or here, wiki page on GD?

So how do you predict the inevitable occurence of a volcanic event a hundred times worse than Mount Tambora just at the right time to exactly counter all of AGW?

May I ask what brand of a crystal ball you are using? It seems to be fairly advanced...

:-)

I never said I'm "predicting" anything. I just said that it is a chaotic system that could tip either way.

Consider the possibility that we dramatically increase our use of coal once oil starts drying up. That puts more soot into the atmosphere. Now imagine that a mega-volcano decides to blow at the same time. No one is saying it definitely "will" happen. It is among the infinite possibilities of what could happen under Murphy's Laws.