IPCC AR6: Breaking the hegemony of global climate models
Posted on October 6, 2021 by curryja
by Judith Curry
A rather astonishing conclusion drawn from reading the fine print of the IPCC AR6 WG1 Report.
Well, I’ve been reading the fine print of the IPCC AR6 WG1 Report. The authors are to be congratulated for preparing a document that is vastly more intellectually sophisticated than its recent predecessors. Topics like ‘deep uncertainty,’ model ‘fitness-for-purpose’ (common topics at Climate Etc.) actually get significant mention in the AR6. Further, natural internal variability receives a lot of attention, volcanoes a fair amount of attention (solar not so much).
If we harken back to the IPCC AR4 (2007), global climate models ruled, as exemplified by this quote:
“There is considerable confidence that climate models provide credible quantitative estimates of future climate change, particularly at continental scales and above.”
https://judithcurry.com/2021/10/06/ipcc-ar6-breaking-the-hegemony-of-global-climate-models/#more-27876
