From what I have gathered that if global warming had any validity there would have been an increase in ocean temperatures. After all the planet is three quarters covered by ocean.
When NOAA went around the world last year you found temepratures stayed the same or went down slightly. That is why the study never made it to the mainstream media. The oceans act as a heat sink/moderator of climate.
The whole thing is a scam.
Now if the temperatures are dropping it could signal a trend to another ice age, or it could signal a trend for nothing at all because it might just be a natural cycle.
IMO you are correct. The ocean is the worlds heat sink. The fear of global warming is that the water from the icecaps would melt and dilute the salt water. Think of it as radiator fluid. If the fluid is too diluted it doesn’t cool as well. If the alarmists were correct the dilution of the oceans would have a very measurable affect, but as is shown time and again that is not the case.