Well, let me explain this to you, Frank Lee.

I will go slowly.

You see, Ron seems to think that the Australian must have interesting views on global warming because (i) he has a university degree; (ii) he claims to have changed his mind; and (iii) he once worked for an institution that had "greenhouse" in its name.

But, you see, his views on global warming are arguably a lot less interesting once you know that (i) his degree has nothing to do with climate science; (ii) and he got his views published in a cranky politically motivated newspaper (not, say, Science).

Now, Ron somehow forgot to mention this. Maybe he did not bother to check, but heard about this guy second hand and thought, well, I'll just toss him in. Or, Ron did check, and decided to mislead us.

Your choice.