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Latest Chemical oceanography Stories

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2008-11-25 08:15:00

Researchers now believe the ocean is growing more acidic faster than once thought, thanks to increasing levels of atmospheric carbon dioxide. University of Chicago scientists documented the phenomena in a paper published online in the Proceedings of the National Academy of Sciences. "Of the variables the study examined that are linked to changes in ocean acidity, only atmospheric carbon dioxide exhibited a corresponding steady change," said J. Timothy Wootton, the lead author of the study...

2008-10-17 18:00:13

Due to high growth and the uniqueness of their product line, Ocean's Flavor Sea Salt is expanding with the help of its production facility partner to meet that growing need. Ocean's Flavor produces a low-sodium, all natural sea salt. Ocean's Flavor products are natural due to the specialized process that optimizes the environment's natural ability to produce salt. This sea salt is comprised of lower sodium, but maintains great taste and the ocean's healthy minerals, which are required for a...

2008-10-16 18:00:15

A U.S. ecologist says he's found a commercially valuable species of clam thriving in oxygen-depleted waters of a so-called "dead zone" off the East Coast. Andrew Altieri, a post-doctoral researcher at Brown University, discovered the population of quahog clams increased in hypoxic zones, defined as areas in which dissolved oxygen in the water has been depleted. He said he determined whether quahog clams have a natural capacity to survive in oxygen-starved waters, but their predators...

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2008-10-15 10:45:00

Coastal dead zones, an increasing concern to ecologists, the fishing industry and the public, may not be as devoid of life after all. A Brown scientist has found that dead zones do indeed support marine life, and that at least one commercially valuable clam actually benefits from oxygen-depleted waters. Andrew Altieri, a post-doctoral researcher in the Department of Ecology and Evolutionary Biology at Brown University, studied dead zones in Narragansett Bay, one of the largest estuaries on...

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2008-09-30 08:50:00

Scientists said Monday that the number of polluted "dead zones" in the world's oceans are increasing and coastal fish stocks are more at risk than once thought. Writing in the journal Proceedings of the National Academy of Sciences, researchers said the rise of "dead zones" -- areas of oxygen-starved water -- "are emerging as a major threat to coastal ecosystems globally." The zones are found from the Gulf of Mexico to the Baltic Sea in areas where algae bloom and use oxygen from the water....

2008-09-18 03:00:08

When I attend a middle school or high school career day, I often have a student tell me, "I want to be an oceanographer." But as we talk more, I realize that what the student really wants to be is a marine biologist. Or sometimes it's the other way around - the student says "marine biology" when he or she is thinking of oceanography. What's the difference? Basically, it comes down to this - an oceanographer studies the oceans, a marine biologist studies marine life. Oceanography is the...

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2008-09-12 10:30:00

The precise timing of the origin of life on Earth and the changes in life during the past 4.5 billion years has been a subject of great controversy for the past century. The principal indicator of the amount of organic carbon produced by biological activity traditionally used is the ratio of the less abundant isotope of carbon, 13C, to the more abundant isotope, 12C. As plants preferentially incorporate 12C, during periods of high production of organic material the 13C/12C ratio of carbonate...

2008-09-06 03:00:19

By Anonymous A single typhoon in Taiwan buries as much carbon in the ocean in the form of sediment as all the other rains in that country all year long combined, impeding the carbon cycle, a study by Ohio State University (OSU) said. The study was the first to examine the chemistry of stream water and sediments that were being washed out to sea during a typhoon. Anne Carey, associate professor of earth sciences at OSU, and her team studied physical weathering, when organic matter...

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2008-08-27 12:15:00

A panel of marine scientists said on Wednesday that in order to keep coral reefs from being eaten away by increasingly acidic oceans, humans need to limit the amount of climate-warming greenhouse gases in the atmosphere. The scientists authored a document called the Honolulu Declaration, for release at a U.S. conference on coral reefs in Hawaii. "The most logical and critical action to address the impacts of ocean acidification on coral reefs is to stabilize atmospheric carbon dioxide...

2008-08-18 18:00:23

By Bina Venkataraman Many coastal areas of the world's oceans are being starved of oxygen at an alarming rate, with vast stretches along the seafloor depleted of it to the point where they can barely sustain marine life, researchers are reporting. The main culprit, scientists say, is nitrogen-rich nutrients from crop fertilizers that spill into coastal waters by way of rivers and streams. A study to be published Friday in the journal Science says the number of these marine "dead zones"...


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
negawatt
  • A unit of saved energy.
Coined by Amory Lovins, chairman of the Rocky Mountain Institute as a contraction of negative watt on the model of similar compounds like megawatt.