Above – if I did this right, video should start (at 3:23) with Michael Mann and Ben Santer describing how James Hansen’s ’88 global temperature projections included a hypothetical large volcanic eruption in the early ’90s.
Pinatubo obliged in 1991, with a totally coincidental massive eruption – and the striking similarity between Hansen’s projection, and actual atmospheric behavior, gave strong support to climate science.
I’d been following Hansen’s work for a long time at that point, but the Pinatubo results erased any doubts I might have had.
‘E’s a witch, I tell ya! A witch!