How greatly does atmospheric CO2 dissolve into ocean water? What's the effective volume of water that CO2 will dissolve into? I assume that surface water will h

How greatly does atmospheric CO2 dissolve into ocean water? What's the effective volume of water that CO2 will dissolve into? I assume that surface water will have more carbonic acid than deep water. What's the CO2 capacity function of water? As more CO2 goes into solution, it will get harder to put more into solution at the same temperature and pressure. And then: what is the change in atmospheric CO2 levels in the past several centuries? In all, I'm having a hard time believing that man-made atmospheric CO2 is creating biologically significant carbonic acid concentrations in ocean water near reefs. [citation needed]