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Latest Chemical oceanography Stories

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...

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2011-05-30 12:46:25

According to new findings, seas off Papua New Guinea suggest that acidifying oceans will severely hit coral reefs by the end of the century. Carbon dioxide bubbles into the water from the slopes of a dormant volcano there, making it more acidic. Coral is badly affected and not growing at all in the CO2-rich zone. The scientists say this "lab" mimics conditions that will be widespread if CO2 emissions continue. The oceans absorb some of the carbon dioxide that human activities are putting...

2011-05-13 10:41:24

A new set of buoys in Alaska waters will help scientists understand how climate change may be affecting the pH level of northern seas. Researchers placed the first buoy last month. "This is the first dedicated ocean acidification mooring to be deployed in a high latitude coastal sea," said Jeremy Mathis, principal investigator for the project and an assistant professor of chemical oceanography at the University of Alaska Fairbanks. "Other moorings have been deployed with ocean acidification...

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2011-05-12 06:50:00

When NASA's salt-seeking Aquarius instrument ascends to the heavens this June, the moon above its launch site at California's Vandenberg Air Force Base won't be in the seventh house, and Jupiter's latest alignment with Mars will be weeks in the past, in contrast to the lyrics of the song from the popular Broadway musical "Hair." Yet for the science team eagerly awaiting Aquarius' ocean surface salinity data, the dawning of NASA's "Age of Aquarius" promises revelations on how salinity is...


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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