I was replying to this: "If it continues, it will have a disastrous affect on ocean life, particularly shell fish. This is not speculation, it is documented fact."
See what you did there? If it continues ... it is documented fact. That's gibberish.
"The ocean currently has a pH of 8.1, which is alkaline not acid. In order to become acid, it would have to drop below 7.0. According to Wikipedia “Between 1751 and 1994 surface ocean pH is estimated to have decreased from approximately 8.179 to 8.104.” At that rate, it will take another 3,500 years for the ocean to become even slightly acid. One also has to wonder how they measured the pH of the ocean to 4 decimal places in 1751, since the idea of pH wasn’t introduced until 1909."
http://wattsupwiththat.com/2009/01/31/ocean-acidification-and-corals/