Who are the "Deniers"?

Over at Celestial Junk, Paul E. Marek takes a look at Quacks, Cranks and Junk Science:

Let’s examine who some of the “deniers” are; you know, the “junk scientists”, the “quacks” and “cranks”, who dare oppose the Global Warming consensus. After all, there couldn't be too many of them if 2500 scientists (or is it 51) back the IPCC report:

Read the list here...