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Latest Chemical oceanography Stories

Image 1 - Trouble In Paradise: Ocean Acidification This Way Comes
2012-01-06 05:09:08

Sustainability of tropical corals in question, but some species developing survival mechanisms Double, double toil and trouble; Fire burn, and caldron bubble. ---Shakespeare, Macbeth Mo'orea, it's called--this island in French Polynesia that's been dubbed the most beautiful island in the world. Here Tahitian breezes dance across crystal blue waters and beneath the tropical seas lies a necklace of coral reefs that encircles Mo'orea like a string of brightly colored jewels....

2011-12-23 08:26:59

Some organisms already experiencing ocean acidification levels not predicted to be reached until 2100 A group of 19 scientists from five research organizations have conducted the broadest field study of ocean acidification to date using sensors developed at Scripps Institution of Oceanography, UC San Diego. The study, "High-Frequency Dynamics of Ocean pH: A Multi-Ecosystem Comparison," is reported in today's issue of the journal PLoS One. It is an important step toward understanding how...

2011-11-28 23:07:50

Observations at submarine springs found along the coast of Mexico's Yucatan Peninsula are giving scientists a preview of the possible fate of coral reef ecosystems in response to ocean acidification. The naturally low pH (a measure of acidity) in the water around the springs creates conditions similar to those that will result from the widespread acidification of surface waters that scientists expect to occur as the oceans absorb increasing amounts of carbon dioxide from the atmosphere....

2011-11-16 09:53:09

U.S. scientists have developed a new, integrated, ten-year science plan to better understand the details of Earth's carbon cycle and people's role in it. Understanding the carbon cycle is central for mitigating climate change and developing a sustainable future. The plan builds on the first such plan, published in 1999, but identifies new research areas such as the role of humans as agents and managers of carbon cycling and climate change, the direct impact of greenhouse gases on ecosystems...

2011-10-12 23:21:24

Woods Hole Oceanographic Institution (WHOI) scientists have discovered that bacterial communication could have a significant impact on the planet's climate. In the ocean, bacteria coalesce on tiny particles of carbon-rich detritus sinking through the depths. WHOI marine biogeochemists Laura Hmelo, Benjamin Van Mooy, and Tracy Mincer found that these bacteria send out chemical signals to discern if other bacteria are in the neighborhood. If enough of their cohorts are nearby, then bacteria...

2011-10-05 14:48:04

A new insight into global photosynthesis, the chemical process governing how ocean and land plants absorb and release carbon dioxide, has been revealed in research that will assist scientists to more accurately assess future climate change. In a paper published today in Nature, a team of US, Dutch and Australian scientists have estimated that the global rate of photosynthesis, the chemical process governing the way ocean and land plants absorb and release CO2, occurs 25% faster than...

A New Hypothesis On Ocean Acidification
2011-08-31 06:17:11

  Since the beginning of the Industrial Revolution, the concentration of carbon dioxide in the atmosphere has been rising due to the burning of fossil fuels. Increased absorption of this carbon by the oceans is lowering the seawater pH (the scale which measures how acidic or basic a substance is) and aragonite saturation state in a process known as ocean acidification. Aragonite is the mineral form of calcium carbonate that is laid down by corals to build their hard skeleton....

2011-06-29 12:04:21

Tiny seawater algae could hold the key to crops as a source of fuel and plants that can adapt to changing climates Tiny seawater algae could hold the key to crops as a source of fuel and plants that can adapt to changing climates. Researchers at the University of Edinburgh have found that the tiny organism has developed coping mechanisms for when its main food source is in short supply. Understanding these processes will help scientists develop crops that can survive when nutrients are scarce...

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2011-06-15 09:25:00

The Gulf of Mexico's "dead zone" is predicted to be the largest ever recorded due to extreme flooding of the Mississippi River this spring, according to a team of scientists working through the support of the National Oceanic and Atmospheric Administration (NOAA). The scientists, from the Louisiana Universities Marine Consortium, Louisiana State University and the University of Michigan, based their forecast on Mississippi River nutrient inputs compiled annually by the US Geological Survey...

2011-06-06 19:42:47

The rate of release of carbon into the atmosphere today is nearly 10 times as fast as during the Paleocene-Eocene Thermal Maximum (PETM), 55.9 million years ago, the best analog we have for current global warming, according to an international team of geologists. Rate matters and this current rapid change may not allow sufficient time for the biological environment to adjust. "We looked at the PETM because it is thought to be the best ancient analog for future climate change caused by fossil...


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
lunula
  • A small crescent-shaped structure or marking, especially the white area at the base of a fingernail that resembles a half-moon.
This word is a diminutive of the Latin 'luna,' moon.
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