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Sunday, November 13, 2011

Carbon dioxide build -up in atmosphere killing marine organisms

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Oceans of the world are going acidic due to heavy build up of carbon dioxide in the atmosphere. It is feared that it may cause catastrophic effects on marine life. The acidic water has the potency of reacting with shells of mollusks found in seas. It can cause dangerous impacts on the lives of other organisms as well.
Scientists are of the opinion that the corrosive sea water will dissolve the shells of tiny marine snails and reduce the coral reefs to rubble. They have informed that the chemistry of oceans is changing to a state that has not occurred from thousands of years. The changing pH of oceans will slow down or stop the process of shell building. It will decrease the process of reef building also.
It has been reported that acidity of oceans has increased about 30% since concentration of carbon dioxide started increasing in the atmosphere many years back. Scientists predict that that the increase of concentration of concentration of carbon dioxide in the atmosphere may go up to 150% if current trend of emission continues. It will cause further increase in the acidity of oceans. The organisms most directly affected by the acidity will be those building hard shells of calcium carbonate. Numerous corals, marine snails and crust building algae fall under this category.
Key Words: mollusks, catastrophic, marine life, crust building algae

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