Sure. That would be like someone suggesting that homosexual behavior is deviant at an APA meeting.
It would be politically incorrect.
I have to be honest.
I'm not sure whether pollution or naturally occurring events (or a combination of both) are causing global warming - although I tend towards the 2nd possibility.
But as scientists, one would think that they would have an open mind towards other possibilities. That, in itself, is most regretful, that scientists and metoeologists have walled themselves off from considering some other factor(s).