The standard is the evidence of reality: does the definition cleanly separate the objects of interest from everything else, and are they functionally equivalent in the relevant respects? Peer review is a useful tool, as long as reviewers are competent to understand what they are reviewing. No, it is the indisputable fact that climate has always changed, and we can't stop it from changing. Of course they are. It's merely anti-fossil-fuel hate propagandists who pretend that those who dissent from anti-fossil-fuel hate propaganda deny what everyone learned in third grade. This is a quite deliberate and calculated fallacy, smear tactic and propaganda trick. We can't. Actual physical events are always the final authority. But that's how we learned to build bridges that don't. GET IT??? https://phys.org/news/2018-07-beware-scientific-studiesmost-wrong.html I've seen enough junk science myself. They are based on actual physical events, not just peer review.