Peer review involves more than just having some others read your article. It means that others try the same experiment and see if they get similar results.
These guys are saying, “No need to bother with all that. Our research as settled all that, and there’s no need for anyone else to test anything.”
These guys are the only ones who are getting these results. That’s not science.
Where did they say that?
Correctomundo. You can "prove" almost any absurd theory is correct if you tailor-make your own parameters for research and ignore all contradictory facts in order to get the result you want.
That's what the minority, yes minority, of the scientific community who say they believe that GW is real are doing to "prove" that the global warming "crisis" is what they feel it is and not what their scientifically trained minds must surely know it actually is. Namely, just another transitory manufactured crisis that will eventually run it's course and then move on to another dire emergency situation that demands modern civilization cease despoiling the planet with it's commercial endeavors and the concomitant rise in the world's overall standard of living.
The anti-everything-but-nature crowd won't be satisfied until we are all back to camping in cold damp caves and scrounging for nuts and berries, and even then they'll complain about how we're insulting Mother Gaia with our discarded seed husks and nutshells.