A paper published today in Climate of the Past reconstructs water pH and temperature from a lake in central Japan over the past 280,000 years and clearly shows that pH increases [becomes more basic or alkaline] due to warmer temperatures, and vice-versa, becomes more acidic [or "acidified" if you prefer] due to cooling temperatures. This finding is the opposite of the false assumptions behind the "ocean acidification" scare, but is compatible with the basic chemistry of Henry's Law and outgassing of CO2 from the oceans with warming.
Thus, if global warming resumes after the "pause," ocean temperatures will rise along with CO2 outgassing, which will make the oceans more basic, not acidic. You simply cannot have it both ways:
"Either the oceans are getting warmer and the CO2 concentration in seawater is decreasing, which means that ocean acidification from man-made CO2 from the atmosphere is nonsense.
Or the oceans are getting cooler and the man-made CO2 from the atmosphere is dissolving in those cooler oceans and causing – insignificant – ocean acidification, which means that warming oceans and the associated sea level rises are nonsense.
Take your pick – REAL SCIENCE says you can’t have both."In addition, the paper shows that pH of the lake varied over a wide range from ~7.5 to 8.8 simply depending on the temperature of each month of the year. As the "acidification" alarmists like to say, a variation of 1.3 pH units is equivalent to a 1995% change in hydrogen ions due to the logarithmic pH scale, just over a single year! Summer months are of course associated with warmer temperatures and more alkaline, higher pH and winter months associated with colder temperatures and much more "acidified" lower pH values. Note also how pH varies widely over ~7.5 to 8.8 simply dependent on the depth at a given time, because colder deeper waters can hold higher partial pressures of CO2 than the warmer surface waters: ..."