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Latest Chemical oceanography Stories

2009-12-03 22:22:54

An international team of scientists led by the University of East Anglia (UEA) has developed a new method of measuring the absorption of CO2 by the oceans and mapped for the first time CO2 uptake for the entire North Atlantic. Published tomorrow in the journal Science, the peer-reviewed study will greatly improve our understanding of the natural ocean 'sinks' and enable more accurate predictions about how the global climate is changing. The new technique could also lead to the development of...

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2009-12-02 10:22:33

In a striking finding that raises new questions about carbon dioxide's (CO2) impact on marine life, Woods Hole Oceanographic Institution (WHOI) scientists report that some shell-building creatures"”such as crabs, shrimp and lobsters"”unexpectedly build more shell when exposed to ocean acidification caused by elevated levels of atmospheric carbon dioxide (CO2). Because excess CO2 dissolves in the ocean"”causing it to "acidify" "”researchers have been concerned about the...

2009-11-03 14:43:34

Nutrients in the Atlantic Large-scale distributions of two important nutrient pools "“ dissolved organic nitrogen and dissolved organic phosphorus (DON and DOP) have been systematically mapped for the first time over the Atlantic Ocean in a study led by Dr Sinhue Torres-Valdes of the National Oceanography Centre, Southampton. The findings have important implications for understanding nitrogen and phosphorus biogeochemical cycles and the biological carbon pump in the Atlantic Ocean. Tiny...

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2009-11-03 09:18:21

Deep-sea ecosystems occupying 60% of the Earth's surface could be vulnerable to the effects of global warming warn scientists writing in the Proceedings of the National Academy of Sciences. "Global-scale models are now estimating that climate change will affect the supply of organic matter from surface waters upon which most deep-sea ecosystems depend," says co-author Dr Henry Ruhl of the National Oceanography Centre, Southampton. Most scientists believe that the burning of fossil fuels (gas,...

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2009-10-26 15:28:49

Stony Brook University researchers find elevated carbon dioxide concentrations impede growth and survival of bivalve larvae Relatively minor increases in ocean acidity brought about by high levels of carbon dioxide have significant detrimental effects on the growth, development, and survival of hard clams, bay scallops, and Eastern oysters, according to researchers at Stony Brook University's School of Marine and Atmospheric Sciences. In one of the first studies looking at the effect of ocean...

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2009-10-10 08:36:32

Scientists work to explain why massive "dead zones" have been invading the Pacific Northwest's near-shore waters since 2002 Yet another ecological scourge may earn a place on the ever-lengthening list of problems potentially caused by climate change: the formation of some so-called "dead zones""”huge expanses of ocean that lose virtually all of their marine life at depth during the summer. Possible connections between climate change and the relatively recent formation of dead zones in...

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2009-09-16 10:24:52

Scientists in Pennsylvania report that boosting production of crops used to make biofuels could make a difficult task to shrink a vast, oxygen-depleted "dead zone" in the Gulf of Mexico more difficult. The zone, which reached the size of Massachusetts in 2008, forms in summer and threatens marine life and jobs in the region. Their study is scheduled for the Oct. 1 issue of ACS' semi-monthly journal Environmental Science & Technology. Christine Costello and W. Michael Griffin and...

2009-09-02 08:10:00

GEOLOGY includes studies of the Fraser River delta, British Columbia; the impact of global climate change on microfossil communities; alluvial fans in Taiwan; earthquake ruptures; earth-flows along the Eel River; Mediterranean fossil whales; collecting bias and carnivorous dinosaurs of the Kem Kem Formation, Morocco; and the effects Hurricanes Cindy, Katrina, and Rita on barrier island systems. GSA TODAY tells a 20-million-year-old story of interactions among the Columbia River, volcanic...

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2009-08-24 13:30:21

A marine scientist said Alaska's $4.6 billion fishing industry might be in danger because marine waters in the area are turning acidic from absorbing greenhouse gases faster than tropical waters, The Associated Press reported. Jeremy Mathis, a chemical oceanographer at the University of Alaska Fairbanks, said the same things that make Alaska's marine waters among the most productive in the world - cold, shallow depths and abundant marine life "“ also make them the most vulnerable to...

2009-08-13 15:45:42

 The same things that make Alaska's marine waters among the most productive in the world may also make them the most vulnerable to ocean acidification. According to new findings by a University of Alaska Fairbanks scientist, Alaska's oceans are becoming increasingly acidic, which could damage Alaska's king crab and salmon fisheries.This spring, chemical oceanographer Jeremy Mathis returned from a cruise armed with seawater samples collected from the depths of the Gulf of Alaska. When he...


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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