This is scattershot.Quote from jem:
we are not in a lab... were are in a dynamic environment.
there are papers which speculate that gases which cause warming the greenhouse effect (through infrared radiation) do not heat the ocean. Sunlight does that.
There are others who speculate there could be a thin layer of ocean warming cause by IR but then things get really complicated with up welling and down welling.
you also have the idea the oceans may be warming a bit locally because of underground volcanoes.
What I can say... is that we know as oceans warm they release co2.
So I think it would be very hard for co2 to then lead ocean warming.
And finally we have the recent study ( i have posted many times) which shows the change in ocean temps lead changes in co2.
The entire exposed surface of the world's oceans are in contact with the atmosphere (which contains CO2), so conduction will occur between them everywhere. That warming oceans release CO2 (some, not all, see also: ocean acidification) does not mean conduction will stop.