Can we really take the ocean’s temperature?
http://junkscience.com/2013/07/10/can-we-really-take-the-oceans-temperature
Bob Carter and John Spooner write: The relative densities of air and water mean that the total mass of the atmosphere is equivalent to that of only the top 10 metres of the ocean. Correspondingly, the heat contained in the atmosphere is equivalent to that contained in only the top 3.2 metres of the ocean. […]