"Experiments have shown that certain types of phytoplankton, such as coccolithophores that are covered with calcareous plates, and some animals with calcareous skeletons, develop defects when living in an acidic environment." Surfrider
As the global ocean absorbs carbon dioxide from the atmosphere becomes more acidic. It then causes damage to quarrels in the shells marine animals. Life becomes more difficult for these organisms as a result. Not only do shellfish begin to lose their protective shell cover, the reproductive rights slow.
Rising acidity threatens ocean habitat and ocean food webs as well as land food webs. The Earth's global ocean increases in as stated daily. The daily input are carbon dioxide (CO2) mixes will ocean water. A chemical change occurs to the carbon dioxide that results in carbonic acid. Carbonic acid then lowers the pH level of ocean water. "PH" means phosphoric level, acid or alkaline level. So as yours. Absorbs more the carbon dioxide that results from increased burning fossil fuels, carbonic acid in the oceans increase. Ocean see waterfalls and its pH level, meaning that the ocean becomes more acidic.
Earth's global ocean would increase in its alkalinity if we stopped adding carbon dioxide and ocean waters. Unfortunately, we have at least 10 years carbon dioxide "in the pipe" and this means that it will take at least 10 years for today's carbon dioxide to begin its part in global warming and ocean acidification.
We know, then, that human activity is causing the atmosphere and ocean to change, and these changes are dangerous to both human life and wildlife on land and in the oceans. Our pollutants injected into the air have global consequences. What goes in the air often ends up in the oceans.