There’s a reason that discussion thread is “forgotten”, I don’t think you wanna open up that Pandora’s box in here. Might as well consider the GW thread a political one, most non-mets’ opinions on AGW are motivated and reinforced by politics, most have little interest in understanding the actual science behind it or are willing to change their opinions, even when the evidence is downright overwhelmingly in favor of man-made climate change, with no other viable theory coming anywhere close to explaining the extremely rapid climate change we’ve seen in the past few hundred years. Some will of course say that earth was warmer in the past, while true, it’s very unusual to warm at the rate it’s doing so today, which makes adaptation damn near impossible and that’s really the cause for concern amongst most climate scientists. In any case, Dr. Roy Spencer is a fringe scientist that isn’t taken very seriously by most of his own peers and for good reason. I take whatever he says with a truckload of salt.