Plimer went off at a tangent, starting to list the numbers and kinds of submarine volcanoes. This, I soon found, was a characteristic tactic: when faced with a tricky situation, he starts throwing out random facts.
Doddering old scientists cannot face attack-lawyers (equivalent) on television. Why do both sides want to produce dramatic sound bites? By definition, a soundbite cannot survive a lawyer-type attack. Volcanoes have produced a lot more carbon - in the past - than we do now, and I think this got all mucked up. I did something on the carbon cycle.
Anyway I wouldn't touch all this with a 10 foot carbon-fiber pole!