The sci-fi writer in me envisions a story about a future where humans exist, and there is only one species of fish in the ocean, and everyone is sick of eating it.
Ocean acidification frightens me more than climate change. Moving Miami is doable. Look at how fast Dubai was built. Sea walls and flood control are also things we know how to do. Ocean ecosystem collapse could be absolutely catastrophic and there is no mitigation.
In theory if you could mix the oceans faster (I know lol), you could begin dissolving the deposited calcium carbonate at the bottom and buffering the oceans with even more bicarbonate ions. Unfortunately this happens naturally on the time scale of centuries, which is super fast for geology but not great news for corals.
