The real tragedy of this is that the AGW people think they are really supported by "science." Hansen, the University of Easy Access and the like are, to me, nothing more than prostitutes plying their trade among the government grant johns, who in turn are selling this bunk in order to deprive us of even more liberty.They prefer to ignore all previous warming periods, many much warmer than today and faster to onset. I've asked a dozen tomes sNd they ignore that inconvenient truth.
During Medieval warming the British Isles were producing two grain crops a year, hasn't happened since and certainly not in the blasting heat furnace of today's imagination.
I will begin to give them some credence when the UN and governmental "meetings" are held by videoconference, rather than at some tropical resort requiring the burning of tens of thousands of gallons of jet fuel and gasoline.