One of the reasons for this I believe is that the sceptics tend to be nicer and more polite than those pushing the global warming barrow.
Anthony Watts from Watts Up With That? is a perfect example of this.
Polite, cautious and prepared to allow space on his blog for people he may not agree with.
But see how one recent example of this is dealt with by Joe Romm from the Climate Progress blog:
And thus the hysterics lose the battle of public opinion. They really do seem to be a very nasty and bitter bunch of people.
Anyway, you can read the rest of Anthony's reflections on this latest milestone here.