The fact that global warming is occuring at an alarming rate isn't much in the way of news. Nor is this:
The WP fronts the increasing evidence that the increase in carbon dioxide in the atmosphere—which has given us the gift of global warming—is also causing the oceans to become more acidic, which in turn "could decimate coral reefs and creatures that underpin the sea's food web." As one researcher put it, "CO2 levels are going up extremely rapidly, and it's overwhelming our marine systems."
I just wanted to add (again) my own anecdotal example of this phenomena.
I keep a marine aquarium. If I use tap water, even after the chlorine has degassed, the aquarium explodes into an algae bloom and all the marine creatures die. So to remedy this, I've had to install a reverse osmosis water filter to purify the water enough to be added to the tank.
Air quality is also crucial for a marine aquarium. There is an intimate interaction between the water surface and the air that helps maintain the proper, and relatively narrow, ph in the tank. A co2 disequilibrium results in the gas moving from one to the other. The normal circumstance is for aquarium water to have an excess of co2 (in the form of carbonic acid) and to off-gas from the water surface into the air. This helps to maintain a somewhat alkaline environment in the tank. It's also why marine aquariums need a lot of agitation on the water surface, unlike fresh water aquariums.
During the winter time when the aquarium room is closed, and there is human activity in that room, the co2 level rises in the room. As it does, the ph in the tank rises as well. If left unchecked, the tank inhabitants ultimately die and you have a dead tank. Mind you, it only takes a couple of people in a 10'x 20' room to see this effect begin. Many avid hobbyist have resorted to drilling a hole in the wall and installing an air pump to continually supply fresh air to the aquarium simply because of this phenomena.
In the above description, substitute the ocean for an aquarium, the open air for room air, and waves for the pump agitation in the tank. Except in the open air, as co2 rises there's nowhere to draw "new" air from.
Just imagine for a moment the actual amount of co2 that must be involved to change the ph of the ocean. If the animals of the marine environment significantly decline or die-off (as they are now), watch for a drastic change in the food chain and acceleration of global warming as the vast number of these animals give off oxygen which helps counter global warming.