Just think "tankers" and you understand the scam....
One minute you're an under-employed Canadian nobody, the next minute you are much feted denier-author, plucked from obscurity to burn lots and lots of greenhouse gases promoting your new book in far off Australia.
Some cynics might think it is because you have taken up a profitable (but definitely minority) opinion to espouse.
But they would be wrong , wrong , wrong.
It is in fact precisely because you are publicly regarded as a nobody, that you have become so lionized.
You have just been (profitably) "astro-turfed" .