Cap-and-trade: You're wrong on the history. Read up on it. As for people making money off it, well it's a market solution. Exactly the point of it is to make money but that's somewhat irrelevant to whether or not it works and doubly irrelevant to whether or not the science of climate change is right. If a gene therapy for MS makes money it doesn't follow that MS has a non-genetic origin. That's a fucking ridiculous thing to believe. But, unsurprisingly, that is what you believe.

Anyway, I'm interested in your thoughts about what's going on with greenhouse gases. Why won't you answer a simple question? You've been astonishingly firm in asserting that humans aren't causing climate change ('junk science' according to you) so you must have an answer to this. Well, what is that answer? 1, 2 or 3?