I'm not claiming giant conspiracies amongst scientists, however, I think the author raises some valid points that require further explanation.
There was once a time when it was consciences that the earth was flat. A didn't take a scientist to prove them wrong. Okay, I understand that we are much more sophisticated in sorting out what is truth and what is not. But I also wish to point out that there was a time were all sorts of "models" that accurately predicted the movement of celestial bodies under premise that the earth was in the center of the galaxy. One notable multi-disciplined individual begged to differ. We know what happened to him when he did.
Bottom line? I naturally wary scientific "consciences". It doesn't exist. So until the views of the educated and qualified folks who don't write for the New Scientist are addressed w/o name calling (i.e. skeptics) I think it is utter foolishness to consider the science settled. Anyone who doesn't take into account and rejects the views of qualified folks in order to establish scientific theory as consciences should be regarded with suspicion.
By the way, the loss of glaciers are non-events. It has occurred before and will occur again.
Until scientists models start predicting the future accurately, GW is going to be a hard sell.
I will agree with you that I certainly have more reading to do. However, I must say that the New Scientist is not he end all be all and neither is it a final authority. It is troubling to me that you reject papers from other peer-reviewed journals (as seems apparent in one of the responses to posts to your article). It raises questions in my mind why include some and exclude others.
Bottom line, there are too many creditable people who argue against your point of view. The most prominent and surprising is Claude Allegre, who was one of the first to warn about man-mande global warming. He has sense recanted and now considers global warming to be:
"...over-hyped and an environmental concern of second rank." (see Allegre's second thoughts
I look forward to a continued lively debate on the subject.