Jeez, this is bad!

Pacific Ocean’s rising acidity causes Dungeness crabs’ shells to dissolve

Difficult to understand how the Pacific is making crabs dissolve off Kent but it’s in The Guardian so it must be true.

15 thoughts on “Jeez, this is bad!”

  1. The salts in sea water act as a buffer. Itis always alkaline ie pH higher than 7 no matter how much carbon dioxide is dissolved into it. The measured daily range in shorelines and rock pools with the tides exceeds the worst warmunist projections and yet astonishingly they have a lively and diverse population. The problem with so much politically driven scientivism is the poor research, the ignorance of other fields and the lack of funding for any research which may rebut the cosy consensus.

  2. Complete bollocks on stilts.

    Average ocean Ph is 8.1 which means it is alkaline. Adding more ‘acid’ (via CO2) doesn’t make the ocean ‘more acidic’, it reduces the Ph closer to that of fresh water. Also, shellfish require CO2 and calcium to grow the shells in the first place!

  3. The article talks of the ocean’s acidity being pH 8.1! To be acid, pH must be less than 7.

    They employ very ignorant people at the Guardian

  4. I once knew a zoologist who told me that the first thing he did with a new postdoc was sit him down and explain pH to him. Politically correct note: maybe most of the hims were hers.

  5. I read a bit about the coral in the |Great Barrier Reef – written by someone sane.
    It mentioned that the pH of the seawater varied widely from place to place, and throughout the day, as the tides washed waters from shallow inshore and deep ocean around. I forget the values (all >7 of course!), but the pH range change experienced several times a day was well over 1.

    Hence any claim that “Gerbil Warbling has altered the pH of the ocean by 0.01” is complete tripe.
    Something that varies widely between 7 and 9 simply cannot be measured to that precision, and to claim so is mendacious.

  6. What does a liquid so acidic that it dissolves crab shell do to human skin?
    I suspect that there must be many surfers wondering.

  7. The article states:
    “Since the industrial revolution, the average pH of the ocean has fallen from 8.2 to 8.1, which corresponds to an increase in acidity of about 26%.”

    Not sure that’s the absolute best way to describe a 0.1 change on a logarithmic scale.

  8. Since the industrial revolution, the average pH of the ocean has fallen from 8.2 to 8.1, which corresponds to an increase in acidity of about 26%.

    Bollocks, a decrease of alkalinity is not an increase in acidity anymore than a decrease in my bank deposit is an increase in my overdraft


    Very good

  9. Bloke in Costa Rica

    Some numbers: Carbonic acid is a weak acid, meaning it’s not fully dissociated. Fewer than one in 800 carbon dioxide molecules form carbonate ions. A pH change from 8.2 to 8.1 represents an increase in hydrogen ions from 6.3 ppb to 8 ppb.

  10. As everybody else has noted, seawater is still on the alkaline side of the pH scale, so it’s mendacious to say it’s becoming “more acidic”. What’s more, there have been crabs in the ocean for far longer than there have been people on the earth, and they have survived far greater changes in climate than we can reasonably expect to see, and atmospheric CO2 concentrations 4-6x current levels. If crabs really are endangered, people should be looking for something to blame besides CO2.

  11. Dear Mr Worstall

    Global warming drives carbon dioxide out of the oceans, since dissolved gasses are evolved as temperature rises. Therefore the level of carbonic acid ought to decrease as more atmospheric carbon dioxide drives temperatures up and evolved CO2 adds to the ‘problem’ of global warming/heating/climate change.

    We are told endlessly that sea temperatures are rising and coral reefs, including the sacred Great Barrier Reef are dying as a result.

    So which is it to be: disolving crabs or dying reefs? Can’t have both*.


    * Actually they can and do. Doublethink.

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