SSDD's ignorance extends to every science topic on which he's ever made comment.
The amount of a gas that will dissolve in a specific given liquid is determined by the gas's partial pressure. Gases in a mixture like our atmosphere will exist in solution in an exposed liquid in amounts proportional to their portion of the atmospheric mixture. As their atmospheric levels change, so will their amount in solution in the exposed liquid.
The gas solubility of a liquid is inversely proportional to its absolute temperature. As its temperature goes up, a liquid's ability to hold gases in solution goes down.
These two effects are independent: the absolute amount of any specific gas found in solution will be the result of the algebraic sum of these two effects. As has been noted, the current trend of these two effects are in opposition. The increasing temperatures will reduce the amount of all gases the oceans holds in solution but the increasing amounts of CO2 in the atmosphere will put more of it into solution.
In the last century, the average temperature of the Earth's oceans have increased by about 0.1C from approximately 265K to 265.1K. That would be a temperature increase of 0.03%. In an earlier post in another thread, I erroneously stated the change was 0.3%. Mea culpa.
In the last century, the partial pressure of CO2 has increased from 0.0284 kP to 0.0405 kP, an increase of 42.75%. This effect is direct - no proportionality factor. That increase in partial pressure will produce that increase in dissolved gases.
Three guesses as to which one wins. And the first two don't count.
