I'm confused about how increased $\ce{CO2}$ concentration in the atmosphere affects the pH of the ocean.
The increase in $\ce{CO2}$ concentration means the pH of the ocean will decrease (by several chemical reactions). However, as there is more $\ce{CO2}$ in the atmosphere, ocean temperatures will rise meaning the ocean will absorb less $\ce{CO2}$, likely slowing down ocean acidification.
In short, the rise in $\ce{CO2}$ seems to have two contrasting effects on the pH of the ocean. Am I interpreting this correctly? If so, how is ocean acidification a problem?
For reference, the article I read is Barker and Ridgwell (2012), Ocean Acidification, Nature Education Knowledge.