Aw, now that sounds so devilish. I don't think so. I would guess that most climate scientists were just fed up with saying "global warming that is caused by humans ..." and shortened that to "global warming". No big deal, and happens all the time. Scientists that don't think so must now say "global warming that is not caused by humans ...", but if they are convincing they surely will be able to shorten their version :)

That's not a problem and not a central issue.