I started trying to write out a reply going point by point, but it's just exhausting. When someone is that far from reality it's just too much work to try to pull them back, and they're not going to do any of the work themselves.

Arctic sea ice has a third of the volume it had when I was young, smaller than at any point we've ever measured, can reconstruct from ships logs, or estimate from ice cores. You'd think that kind of absurd level of change would give some of these people pause, but it doesn't.

Which claim is nuttery?

1. Getting clouds right is extremely important for the climate models. 2. We still do not know how to get clouds right.

Well for one there's contradicting comments. First saying that there has been warming every decade, but then saying that's somehow cyclical (warming and cooling cycle) when it's really a trend (continuous warming). Then saying we need facts and not computer models, but then going on to saying we need computer models.