How does global warming both cause CO2 to leech out of the oceans in a "Feedback loop", but simultaneously make the oceans absorb more CO2, turning them acidic?
"Warmer oceans release CO2 faster than thought"
Warmer oceans release CO2 faster than thought - environment - 25 April 2011 - New Scientist
"Carbon emissions creating acidic oceans not seen since dinosaurs"
Carbon emissions creating acidic oceans not seen since dinosaurs | Environment | guardian.co.uk
"A lie ain't a side of a story. It's just a lie."
First, we have to be exact in terminology (not a strong suit of "climate scientists"). CO2 is NOT dissolved in water - carbonates are, though - and the solution, as most, is an equilibrium:
CO2 + 2H2O <--> HCO3- + H3O+ (that's the bicarb and acid)
HCO3- + H2O <--> CO3-- + H3O+ (that's the carbonate and acid)
For the question asking about increased amounts of dissolved CO2 (really as carbonates), there are two mechanisms working:
1. As the solute concentration in the gas (CO2 in air) increases, more of it will become dissolved in the solvent (ocean or any water) because the gradient is higher (difference between concentration of solute in one phase and the concentration of solute in another phase). It's the partition coefficient and one of the reasons that counterflow methods are most effective in separation processes.
2. Also, as a solvent is heated, its ability to solvate the solute increases. For example, a teaspoon of sugar dissolves much more easily in a cup of hot tea than in a glass of iced tea.
HOWEVER, that's simply looking at the thermodynamics of the situation. Reactions can be controlled by thermodynamics OR by kinetics. When there is an opportunity for a release of gas from a liquid, that's a strong driving force because of entropy (gases are much more disordered than liquids and certainly more than solutions and nature strives for disorder). For example, do noting to a bottle of Coke - just let it sit on the counter at constant temperature and pressure - and the dissolved carbonates (bicarb and carbonate) are in the equilibrium above. As soon as the bicarb goes to the side of the equilibrium where it is a gas, it's outta there - outta that liquid system. And, because it left, the equilibrium is driven more to having more bicarbs go to the side of the equilibrium where it becomes a gas.
So, there is a lot of stuff going on in this system, even just considering pure water and pure CO2. And, as usual with the climate, a hell of a lot more is going on. Anyone who claims anything other than 'we need to investigate this further' is simply blowing smoke out their ass.
I hope that helped.