Item 1: The heat capacity of the ocean is big compared to the heat capacity of the atmosphere.
Item 2: The carbon dioxide capacity of the ocean is big compared to the carbon dioxide capacity of the atmosphere.
Item 3: Heat and mass transfer across the atmosphere/ocean interface are not independent and are not simple.
Personal experience re Item 3: I have spent a lot of the last six years trying to get my head around heat and mass transfer across the atmosphere/farm dam interface.
3a: It is really not simple.
3b: Even a failed physicist like me can see that the semi-empirical models of it in the 'climate science' literature are dodgy-as.
3c: I have a model: it is too hard to test in farm dams so we have gone back to 44-gallon drums of water.
3c.i: We haven't got data good enough to test it in six months yet.
3c.ii: 44-gallon drums of water are simpler than the ocean.
Item 4: When I was an undergraduate, when we talked about the weather, we talked about strange attractors and the butterfly effect and the essential unpredictability of complex systems and the impossibility of drawing a line between weather and climate since they showed the same self-similar pattern on all scales. Now, for the entire lifetime of today's undergraduates, the world has been running around like a headless chook pretending the climate can be modelled by y = mx + b.