I have to respond to this, because it's clearly an attempt at a "balanced" view but missing some very important key points that distort your opinion.
First of all reducing the AGW debate to "both sides" with a neutral "middle ground" is disingenuous - in the count of number of people the balance is very strongly in favor of accepting AGW to degrees ( e.g. this recent set of studies arriving at between 91-97% consensus
). The denialists get disproportionate attention, which is actually a known type of political manipulation (e.g. argument to moderation
) and this type of attention has been shown to disproportionately affect people who aren't specialized in the subject matter to moderate their position when no such moderation is required (more on this subject, though I can't find the scientific paper about it right now
Second, appeal to "scientific purity" is overshooting. Science is constantly advancing, improving models, replacing wrong assumptions with less wrong assumptions. There is nothing "pure" about it, and in no way does it need to be to advance the cause and be useful to our lives. Words such as "purity" are much too loaded to be used, exactly because of the scientific approach. There's no need to deny - the scientific world does not have all the T's crossed and the I's dotted on AGW, just as it doesn't on gravity, physics and quantum theory, but we still happily cross bridges every day. The degree of certainty has long reached sufficient levels to warrant seriously looking at how to realistically (not politically, stupid carbon credits) mitigate instead of discussing a black and white position on AGW's existence.
And thirdly the AGW debate is much bigger than the USA. I understand that you have bipartisan issues across the board (not just AGW, and to be clear: I think both parties are in the wrong) but that doesn't extend to the rest of the world and this is a global issue.
So I think that while I don't entirely agree with your argumentation, I agree with your position. AGW is a science thing - and science has agreed that it exists though not to which degree. The challenge is to find solutions, and that's also with science.
Finally, I find the actual article very intriguing and somewhat challenging to my own views on AGW, as evidenced by my first thoughts on this: could it be that the geology of the antarctic is becoming destabilized because of the lessening of the weight of the ice sheet, in turn causing more geological activity? But that's a conjecture from an explanation that wouldn't challenge AGW, and real science must of course also look for other hypotheses.