It appears that what seemed to begin as an effort to engage in a discussion about "Scientific Method in climate science", has been derailed.
For whatever reason, some Members (whether by choice or the simple inability to participate in real scientific discussions?) seem to NOT want THAT discussion to take place.
As for this "Argument from Authority" issue - in relation to Science - I present the following Quote :
"One of the great commandments of science is, 'Mistrust arguments from authority'. (Scientists, being primates, and thus given to dominance hierarchies, of course do not always follow this commandment.) Too many such arguments have proved too painfully wrong. Authorities must prove their contentions like everybody else. This independence of science, its occasional unwillingness to accept conventional wisdom, makes it dangerous to doctrines less self-critical, or with pretensions to certitude."
The Demon-Haunted World: Science as a Candle in the Dark
By Carl Sagan