Over the years, the primary argument against man-made (anthropogenic) global warming (AGW) has shifted many times.
1) The planet isn't warming
2) The planet isn't warming as much as scientists claim
3) The planet is warming, but it's natural
4) Maybe humans are causing it, but warmer is better
5) Okay now the warming has stopped
Lately it appears that there's been a shift toward a new primary AGW 'skeptic' argument - that while arguments 1-5 may be wrong (they are), the future warming projections may be exaggerated because they're based on feedbacks which we don't understand well. Several answers to my previous question made this sort of argument.
http://answers.yahoo.com/question/index;_ylt=ApgP6r0Gm0I5AnvFFGjNpffsy6IX;_ylv=3?qid=20080715094518AAFRfCw
There is certainly some validity to this argument, because water vapor and clouds are some of the highest uncertainties in climate models.
So do you think the argument is shifting, and what do you make of this point?
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