Check out this world class  nonsense

Carbonic Acid

When carbon dioxide dissolves in this ocean, carbonic acid is formed. This leads to higher acidity, mainly near the surface, which has been proven to inhibit shell growth in marine animals and is suspected as a cause of reproductive disorders in some fish.

On the pH scale, which runs from 0 to 14, solutions with low numbers are considered acidic and those with higher numbers are basic. Seven is neutral. Over the past 300 million years, ocean pH has been slightly basic, averaging about 8.2. Today, it is around 8.1, a drop of 0.1 pH units, representing a 25-percent increase in acidity over the past two centuries.

Ocean Acidification — National Geographic

“Fifty percent of those pteropods are affected by acidification,” Bednarsek said. “It’s a lot—more than we expected.” And sooner. She tells me that acidification is happening sooner and on a larger scale than scientists predicted. “This is just an indication of how much we are changing the natural environment,” she said.

The study estimates “that the incidence of severe pteropod shell dissolution owing to anthropogenic [ocean acidification] has doubled in near shore habitats since pre-industrial conditions across this region and is on track to triple by 2050.” In other words, thanks to human carbon pollution, twice as many marine creature shells are dissolving as were before the industrial era. And three times as many will be dissolving by mid-century. 

“By 2100, 50 percent of the oceans would no longer be viable for pteropods,” Dr. Richard Freely, the study’s co-author, told me, if we continue emitting carbon pollution apace. And that’s exactly what’s expected to happen.

The Pacific Ocean Has Become Acidic Enough to Dissolve Sea Snails’ Shells | Motherboard

How much crap can these people pack into a few short paragraphs?

1. A pH of 8.1 is alkali, not acidic

2. pH varies by far more than that from year to year, and gets much lower than 8.1 Monterey Bay regularly cycles between 7.8 and 8.1

sanctuarymonitoring.org/regional_docs/monitoring_projects/100240_167.pdf

The shellfish in Monterey Bay aren’t dissolving. According to the experts, they should all be dead.

3. CO2 levels were much higher during most of the last 300 million years

They claim that higher levels of CO2 cause the pH to drop, and then they contradict themselves by claiming that pH was higher over the last 300 million years — when CO2 was also much higher.

In other words, they disproved their own theory. Higher levels of CO2 over the past 300 million years did not make the pH drop.

Unbelievable buffoonery from the people who make the Monty Python witch burners look like serious scientists. There may well be something affecting the shellfish – but it isn’t CO2. Does climate science “peer-review” actually serve any scientific purpose? They never seem to catch anything, no matter how blatantly incorrect it is.