I suggest that parts of this article are wrong. In my view increased ocean carbon dioxide should increase the calcites available for corals. The article also seems to neglect the vast quantities of magnesium ions available in the oceans (about 5 tonnes per square metre of ocean surface area) and I wonder if the effect of these are taken into account in any ocean carbon dioxide calculations. The ocean calcium is about 1.5 tonnes per ocean surface square metre.

You wrote:
"... As CO2 entering the atmosphere continues to rise, its pressure on the ocean surface grows, causing increasing amounts of the gas to be dissolved by it. In colder waters CO2 is held in suspension while in warmer water at lower latitudes, more of it reacts with water to form carbonic acid .... "
You appear to only have a passing knowledge of CO2 chemistry. Before entering debates of this type you - and your like minded coleagues - should master the phase reactions and the interplay of pressure and temperature on gas solubility. As an earlier post noted there is also the problem of precipitating phases that could remove the CO2 from the system altogether generating corals or just form insoluble carbonates.
Maybe CO2 is a bad thing but no one wins when faulty arguements are used in the debate.

mike..yet another ECONOMIST...who..feels the need to put a tax on carbon..[a tax people will pay to big business][,while other economists speculate on the price of each carbon unit]..in short revealing his expertize,..reveals the real reason for this new tax

but..lets accept he is qualified to speculate on marine/biology that he treats with rather loosly..quote<<The result:..serious damage to the marine environment and adverse effects on the ability of crustacean and other fish to survive>>..i will leave out all affects inherant in his calling crustations..fish..[and his later quote that the crustations will be extinct in 40 years]

and focus more on other aspects,like the affect of lime on ph
http://www.google.com/search?ie=UTF-8&oe=UTF-8&sourceid=gd&q=lime+and+ph&hl=en-GB&rls=MEDA,MEDA:2008-36,MEDA:en-GB

as the link reveals lime increases ph..[his article says its decreasing]..or as he..so clearly...lol..puts it<<..continued absorption by ocean water is changing and will further change its natural alkalinity with a pH of 8.2 units....Pure water has pH of 7.0 so strictly speaking, oceans are not becoming more acidic:..they are becoming less alkaline...>..im sure he is saying the oceans are becomming more acidic[..yet not sure if he did say it or not]

anyhow the affect of more acid means..it chews away the shell of the creatures..[as the ocean is a closed loop[the only way the lime/calcium shells can disolve to is into the ocean..[increasing the alcalinity]

the absaurdity of big bu-sin-ness and econo-mists trying to talk science is revealed..as the lie carbon-tax based on co2 allways was...

and still those who claim climate..lol..change..avoid naming the change/this tax will stop..[stop the warming or cooling?]..or stop the people spending on what they chose..so business can collect a new tax then speculate up the price of carbon..to as much as the market will bear

[both cooling and warming..have equally been put up as excuses to get this NEW TAX,..economists/big buisness and govt..see as the cure their lying figures in the money-market mess..needing a new speculative/bubble be created...now we are talking about fish and chips..by battering/up the tax payer

.is there no end to the lies..those needing this new/tax will stoop to...what you couldnt get a scien-tryst to say it?...has your thesis been peer revieuwed?...lol

Now that more and more evidence is coming to light about the furphy of human induced global warming, the alarmists have to come up with another catasrosphy caused by human. I have predicted for some time that ocean acidity will be the next big fright and this article is the first of many to follow. Mind you with no evidence that humans cause it.

This bloke reckons it is the old foggy of carbon emmissions. some bloody fool will next reckon it is all our acidic urine that finally gets into the oceans that causes the massive problem.

Oh well, be a change from global warming.

You need to get out more .. here's an article from New scientist, talking about how starfish THRIVE under higher temperatues and increased acid in their environment.

http://www.newscientist.com/article/mg20227104.800-starfish-defy-climate-change-gloom.html

When scientists actually run experiments they find interesting results, instead of just dreaming up possible causes of non problems, and they all want a simple cause, singular, nothing complex .. like CO2, yes that's convenient, let's go with that, and anyway, everyone alredy agrees - how nice, no science here.

Once again, a hysterical doomsayer, who DENIES that we and everything else on this planet, adapts, sometimes things don't and that's all part of the evolutionary cycles that got us to this point.

The reefs in Bikini atoll, have regenerated after Nuclear tests, including an H-Bomb, so I also believe our GBR will survive long after we're all gone.

Stop worrying, it may never happen, and if it does, adapt.

This article "No chips, no fish: ocean acidification", is fundamentally flawed. Devastation already being caused to coral by nutrient pollution from human sewage feeding algae is not even mentioned. I took a photograph of one type of algae I submit is killing coral, see:

http://www.solomontimes.com/news.aspx?nwID=4043

Australian government is recalcitrant toward admitting sewage impact devastation already occurring in the marine environment and unbelievably the Coral Sea and GBR is not even part of the Coral Triangle Initiative.

The devastation is extraordinary and the now rapidly worsening situation is being gagged by major media at editorial level. The gagging is causing delay to solutions, delay allowing and causing more damage that in turn is compounding damage.

Marine feeding animals and already poverty stricken island people are being deprived of essential nutrition and natural food supply.

The situation and especially the gagging is a disgrace to this nation.