It matters very little what one scientist says. Just as much as what 99,9% of all scientists on Earth say. As long as they cannot back their utterances up with measurements and facts. Ah yes, we have forgotten what facts are. Opinions are not facts. Assumptions are also not facts. And simple conjecture also has nothing to do with facts. Melanges of those also don’t qualify even if everyone but one person affirms it. Real facts have a value on their own, they don’t need support from outside. So far, whatever Climate Alarmists have forwarded has not been proven as a fact. Opinions are a dime a dozen.
The climate nuts hurt their cause as much or more than they help it. And their own words doom them to ridicule and irrelevance.