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Latest Chemical oceanography Stories

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2009-03-09 09:55:00

A new study found that ocean acidification caused by climate change is stripping away the protective shell of tiny yet vital organisms that absorb huge amounts of carbon pollution from the atmosphere, the AFP reported. The study found that the calcium carapace of microscopic animals called foraminifera living in the Southern Ocean have fallen in weight by a third since the start of the Industrial Revolution. The tiny organisms inhabit the surface waters of oceans around the world and are an...

2009-02-19 12:54:00

NEW YORK, Feb. 19 /PRNewswire/ -- Imagine a world without fish. A new documentary on climate change and the oceans proposes just that. The film, A Sea Change, premieres at the DC Environmental Film Festival March 14. A Sea Change is the first documentary about ocean acidification, the underbelly of climate change, a little-known but potentially devastating threat to ocean life. The screening takes place at 3:30 pm in Baird Auditorium, at the National Museum of Natural History, at the...

2009-02-16 09:23:39

The global travel logs of greenhouse gases are based on atmospheric sampling locations sprinkled over the Earth and short towers that measure the uptake or release of carbon from a small patch of forest. But those measurements don't agree with current computer models of how plants and soils behave. A University of Michigan researcher is developing a unique way to reconcile these crucial data. "If we're going to adapt to climate change, we need to be able to predict what the climate will be,"...

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2009-02-06 07:41:08

Proposed new international 'equation of state' employs absolute over practical salinity to redefine thermodynamic equation of seawater after 30 years Seawater is a complex, dynamic mixture of dissolved minerals, salts, and organic materials that despite scientists best efforts, presents difficulties in measuring its potential to contain and disperse energy. Like the water itself, the calculations scientists employ to measure seawater are fluid, undergoing significant revisions and...

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2009-01-30 08:55:00

The oceans of the world act as a shock absorber for the effects of climate change - absorbing a sizeable amount of the greenhouse gas carbon dioxide, according to a New York Times report. However, this assistance comes with a price: as the gas dissipates, it causes the seawater to become more acidic. As a result, an international board of marine scientists state that this acidity is growing so rapidly that it hurts the chances of the continued existence of coral reefs, shellfish and the...

2009-01-28 11:46:01

Danish scientists are warning that uncontrolled global warming might significantly expand the ocean's dead zones, seriously affecting fish and shellfish. Dead zones are low-oxygen areas in the ocean where higher life forms such as fish, crabs and clams are not able to live, the University of Copenhagen researchers said. In shallow coastal regions, such zones can be caused by runoff of excess fertilizers from farming. Professor Gary Shaffer, who led the study, said unchecked global warming...

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2009-01-25 16:15:00

Unchecked global warming would leave ocean dwellers gasping for breath. Dead zones are low-oxygen areas in the ocean where higher life forms such as fish, crabs and clams are not able to live. In shallow coastal regions, these zones can be caused by runoff of excess fertilizers from farming. A team of Danish researchers have now shown that unchecked global warming would lead to a dramatic expansion of low-oxygen areas zones in the global ocean by a factor of 10 or more. Whereas some coastal...

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2009-01-22 11:20:02

Lately, every drought, flood or hurricane which happens on the planet is connected with climatic change, and therefore the interest of society and scientists is getting to know this phenomenon better. Climatic change is connected at present with the phenomenon of global warming. This is characterized by the increase of carbon dioxide (CO2 gas), which produces the reduction of heat emission to the space and provokes a higher global warming. Although gases in the atmosphere tell us about this...

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2009-01-20 10:15:50

Considered pollutants in the West, discharges help to feed millions in Egypt While many of the world's fisheries are in serious decline, the coastal Mediterranean fishery off the Nile Delta has expanded dramatically since the 1980s. The surprising cause of this expansion, which followed a collapse of the fishery after completion of the Aswan High Dam in 1965, is run-off of fertilizers and sewage discharges in the region, according to a researcher at the University of Rhode Island Graduate...

2009-01-16 10:51:06

An international team of scientists has solved a mystery that has puzzled marine chemists for decades. They have discovered that fish contribute a significant fraction of the oceans' calcium carbonate production, which affects the delicate pH balance of seawater. The study gives a conservative estimate of three to 15 percent of marine calcium carbonate being produced by fish, but the researchers believe it could be up to three times higher.Published January 16th in Science, their findings...


Latest Chemical oceanography Reference Libraries

Ocean Acidification
2013-04-01 10:32:20

Ocean acidification is the name that was given to the ongoing decrease in the pH of Earth’s oceans, a cause of the uptake of anthropogenic carbon dioxide from the atmosphere. About 30 to 40 percent of the carbon dioxide that is released by humans into the atmosphere dissolves into the lakes, oceans, and rivers. To maintain the chemical equilibrium, some of it reacts with the water to create carbonic acid. Some of these extra carbonic acid molecules react with a water molecule to provide a...

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Word of the Day
baudekin
  • A rich embroidered or brocaded silk fabric woven originally with a warp of gold thread.
'Baudekin' seems to be an alternative form of 'baldachin,' from the Italian 'Baldacco,' Baghdad, the city where the material was made.
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