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Latest Chemical oceanography Stories

2014-07-17 12:22:22

WASHINGTON, July 17, 2014 /PRNewswire-USNewswire/ -- NASA embarks this week on a coordinated ship and aircraft observation campaign off the Atlantic coast of the United States, an effort to advance space-based capabilities for monitoring microscopic plants that form the base of the marine food chain. http://photos.prnewswire.com/prnvar/20081007/38461LOGO Phytoplankton, tiny ocean plants that absorb carbon dioxide and deliver oxygen to Earth's atmosphere, play a major role in the...

Modern Ocean Acidification Is Outpacing Ancient Upheaval
2014-06-03 15:48:09

Columbia University Rate May Be Ten Times Faster, According to New Data Some 56 million years ago, a massive pulse of carbon dioxide into the atmosphere sent global temperatures soaring. In the oceans, carbonate sediments dissolved, some organisms went extinct and others evolved. Scientists have long suspected that ocean acidification caused the crisis—similar to today, as manmade CO2 combines with seawater to change its chemistry. Now, for the first time, scientists have...

coastal dead zone
2014-05-19 12:44:34

Brett Smith for redOrbit.com - Your Universe Online Containing dissolved oxygen concentrations of less than 2 or 3 parts per million, hypoxic waters in estuaries and sections of coastline are essentially “dead zones” where life cannot exist. According to a new study in the journal Nature Geoscience, iron discharged from continental sediments acts as a limiting switch that could prevent coastal waters from creating a runaway feedback loop that leads to less and less dissolved oxygen...

Ocean Acidity Is Dissolving Shells Of Tiny Snails Off The US West Coast
2014-05-01 03:41:37

NOAA A NOAA-led research team has found the first evidence that acidity of continental shelf waters off the West Coast is dissolving the shells of tiny free-swimming marine snails, called pteropods, which provide food for pink salmon, mackerel and herring, according to a new paper published in Proceedings of the Royal Society B. Researchers estimate that the percentage of pteropods in this region with dissolving shells due to ocean acidification has doubled in the nearshore habitat...

Oxygen Depletion In Baltic Sea Is 10 Times Worse Than A Hundred Years Ago
2014-04-01 14:34:17

Aarhus University This news release is available in German. After several years of discussions, researchers from Aarhus University (Denmark), Lund University (Sweden) and Stockholm University (Sweden) have determined that nutrients from the land are the main cause of widespread areas of oxygen depletion. The results were published on 31 March in the prestigious American journal Proceedings of the National Academy of Sciences. Nutrients are the villain The deepest areas of the...

Reimagining How Earth Emerged Out Of Ice Age
2014-03-19 14:15:38

Lee Rannals for redOrbit.com - Your Universe Online Researchers, publishing a paper in the journal Nature, say rapid erosion in mountain regions could explain why the Earth isn’t essentially still a snowball. Scientists have long believed that rocks pushed up to the surface by plate tectonics absorbed atmospheric carbon dioxide, and volcanic processes are what helps to emit this CO2. However, despite this theory and a variety of other hypotheses being put forward to balance the...

Ocean Food Web Plays Key Role In The Global Carbon Cycle
2014-03-12 10:39:50

University of California - Santa Barbara Nothing dies of old age in the ocean. Everything gets eaten and all that remains of anything is waste. But that waste is pure gold to oceanographer David Siegel, director of the Earth Research Institute at UC Santa Barbara. In a study of the ocean's role in the global carbon cycle, Siegel and his colleagues used those nuggets to their advantage. They incorporated the lifecycle of phytoplankton and zooplankton — small, often microscopic animals...

2014-02-27 18:37:30

Reducing the size of the Lake Erie "dead zone" to acceptable levels will require cutting nutrient pollution nearly in half in coming decades, at a time when climate change is expected to make such reductions more difficult. That's one of the main conclusions of a comprehensive new study that documents recent trends in Lake Erie's health. It offers science-based guidance to policymakers seeking to reduce the size of toxic algae blooms and oxygen-starved regions called hypoxic zones, or dead...

Million Dollar Grand Challenge Issued For Dead Zone Solutions
2014-02-19 04:11:12

redOrbit Staff & Wire Reports - Your Universe Online In response to President Obama’s call for institutions and philanthropists to help find solutions to the world’s most pressing issues, Tulane University announced Monday that it would offer a $1 million prize to the researcher or entrepreneur who devises the best plan to combat annual “dead zones” in lakes and oceans. In a statement, the university said that it was soliciting innovative solutions to battle hypoxia, or...

Ocean Acidification Long Term Research
2014-01-28 13:43:59

Brett Smith for redOrbit.com - Your Universe Online More research is necessary for an accurate determination of how marine species will cope long-term with ocean acidification, according to a new research review in the journal Trends in Ecology and Evolution. "We can't measure evolutionary responses in all organisms, so we need to choose carefully to get the most bang for our buck," said review author Jennifer Sunday, a post-doctoral researcher at The University of British Columbia in...


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
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  • A blustering, bullying fellow; a pot-valiant braggart; a bully.
This word is named for Draw-Can-Sir, a character in George Villiers' 17th century play The Rehearsal.
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