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Fighting warming: injection of carbon dioxide in the ocean

07 Jan

Fighting ,warmingUntil we know enough to say that dumping CO2 in the water – sound method, but there will not be carried out small-scale experiments, we do not understand how this will affect marine creatures. I think that there should be a series of experiments using one ton CO2 “, – said Wallace Broker of the University of Columbia (USA).

Scientists urged to begin experiments on pumping into the depths of the ocean the main culprit of global warming – carbon dioxide, writes British newspaper The Guardian.
Many experts believe that carbon dioxide emissions from power plants caught and graves in the depths of the oceans, can be stored there for centuries and will not create the greenhouse effect, but can be dangerous to sea creatures.

Wallace Broker believes that a ton of gas can be dropped to the bottom of a deep-sea drilling ships and see how it will affect life in the sea. Otherwise, he warns, the gas may begin to drop into the sea without the idea of the consequences. “If such a method of disposal would be economically advantageous, it is possible that the dumping of CO2 in the oceans will begin without proper evaluation and experimentation”, – said the scientist.

Unlike most schemes burial
carbon dioxide, which aim to capture the gas and pipe it into underground storage tanks with salt water, this method involves the dropping of gas directly into the water. For this fit only very deep seas and oceans, as well as the required high pressure to prevent gas leak to the surface.

Scientists believe that at depths of more than 3,5 km the pressure “will squeeze” gas to the seabed. North Sea in this condition will not pass, but the Pacific is the leading candidate.

Wallace broker believes that the 480 billion tons of carbon dioxide – equivalent to the volume of global emissions in 16 years – can be safely discharged into the waters of the Pacific Ocean.

Worms and other organisms on the seabed directly under the gas storage will die, he says, but it does not compare with the damage the fishing industry. Other experts believe that the discharged carbon dioxide may damage the larger marine life, including fish, as the effused gas will increase the acidity of water.

Small amounts of CO2 have been lowered into the water off the California coast, but the larger experiments have not yet done. Planned experiment about Hawaii was canceled after protests from local residents and environmentalists. Greenpeace remains opposed to such tests.

“I perfectly understand those who suggest that Benthic life is pretty fragile. So before you go to dump tons of carbon, it is necessary to hold a series of experiments. I’m trying to soften the stance of Greenpeace on this issue and to gain permission to conduct tests,” – says Wallace Broker.

However, Bill Har from “Greenpeace believes that” reducing CO2 emissions has never been the first task required “.

“The situation can be compared with a passenger plane in which the accident occurred – the team should not rush to hasty actions that do not make the situation worse.” Storage ┬╗CO2 in the ocean – one of these actions. The negative attitude of Greenpeace and other organizations based on studies of effects of dumping of CO2 into the ocean “- he said.

 
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Posted by on January 7, 2010 in Ocean

 

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