Veteran meteorologist Joe Bastardi for example blasted the paper in a comment at WUWT, calling the claims “nonsense” and reminded that renowned climatology expert William Gray had predicted what is now happening already 40 years ago.
Bastardi wrote that it is all part of the natural end-game of the Atlantic’s warm cycle. The veteran meteorologist rated the paper’s claims:
This idea borders on delusional, an attempt to self verify the idea that co2 is actually influencing the oceans, laughable since the heat capacity of the oceans is 1000x air, and co2 is only .04% of the air.”
Curry calls the paper’s methodology “remarkable”
The latest high profile climate scientist criticizing the work is Georgia Tech climatologist Judith Curry at her Climate Etc. site here. First she is unconvinced of the paper’s methodology of using climate model simulations and “Mannian proxy analysis” of decadal to millennial scale ocean circulations and internal variability in place of direct measurements, calling it “remarkable”.
She poses the rhetorical question:
So, who you gonna believe? Climate models and Mannian proxies, or direct and satellite observations of ocean circulation?
AMO is behind the changes
Curry says that the cooling of the high latitude North Atlantic can be traced back to the Atlantic Multidecadal Oscillation (AMO), which now appears to be at the start of its descent into its cool phase. She writes there is some evidence that the warm phase of the AMO already peaked circa 2007. Moreover she hints that the transition could be sharp, as was the case in the late 1990s.
Curry scoffs at the notion that climate change is likely behind the cooling of the North Atlantic. In her summary she writes (my emphasis).
What we are seeing in the high latitudes of the North Atlantic is natural variability, predominantly associated with the Atlantic Multidecadal Oscillation. Based open observational analyses, there is no sign of a slowdown in the Gulf Stream or the Atlantic Meridional Overturning Circulation.
Now, I am very interested in the AMO, since it strongly influences Atlantic hurricanes, Arctic sea ice, and Greenland climate. We are already seeing a recovery of the Atlantic sector of the Arctic sea ice, and some hints of cooling in Greenland.”