Proper skepticism promotes scientific inquiry, critical investigation, and the use of reason in examining controversial and extraordinary claims. It is foundational to the scientific method. Denial, on the other hand, is the a priori rejection of ideas without objective consideration.
That's funny. The first definition on Google states "a person inclined to question or doubt all accepted opinions.", which seems to be a good fit for those who are denying global warming. If anything, it seems as though the Fellows of the Committee for Skeptical Inquiry should call themselves something different.
The Fellows of the Committee for Skeptical Inquiry are Google Deniers.