My bad choice of examples.
Normally, as one goes up in the atmosphere, the temperature goes down.
Actually, around here there is often a marine sublayer that is cooler at lower altitude with warmer air trapping it that then cools off even more at higher altitude, making a sandwich so to speak. The boundaries are rather stark as temperature on my property can vary by 15° from lower elevations to higher.
In the case of the oceans, the Pacific Decadal Oscillation take 30 years or more to complete that does bring colder water to the surface. The warmist claim is that when the PDO last reversed in 1997 the water trapped below is warmer than it otherwise would have been without AGW and that the cooler water now at the surface has not heated yet. At least, that is my minimal understanding of the claim.
Of course they have not ventured forth with temperature sensors and long wires to reach this super heated water layer so as to be able to test this bs... so they just have a hypothesis at best. Even if they did... they wouldn’t find it so they would falsify the data... aka hockey stick science.
Debate with “Warmers” exp;oses one to the same risks involves with argueing with fools and drunks.
Even when presented with a flawless hypothesis, they go “Full Pigeon”, and strut about victoriously.
Psittacosis cures Bad Pigeon Behavior.
Defunding cures bad “Warmer” Behavior.