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Latest Chemical oceanography Stories

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...

2011-05-10 15:37:00

HARRISBURG, Pa., May 10, 2011 /PRNewswire-USNewswire/ -- The state departments of Environmental Protection and Agriculture, in collaboration with American Farmland Trust (AFT), plan to celebrate the partnership that has led to nutrient reductions for the Chesapeake Bay watershed. AFT will host an event to donate to DEP and the Department of Agriculture 4,023 nitrogen credits earned by five farmers from Lancaster, Clinton and Northumberland counties who participated in AFT's Best Management...

2011-05-10 16:02:52

The acidification of the world's oceans could have major consequences for the marine environment. New research shows that coccoliths, which are an important part of the marine environment, dissolve when seawater acidifies. Associate Professor Tue Hassenkam and colleagues at the Nano-Science Center, University of Copenhagen, are the first to have measured how individual coccoliths react to water with different degrees of acidity. Coccoliths are very small shells of calcium carbonate that...

2011-04-26 15:11:31

Last fall, EARTH caught up with geochemistry grad student Jeremy Jacquot as he was about to embark on the first U.S.-led GEOTRACES cruise across the Atlantic, where he and 32 researchers were hoping to measure and track concentrations of various trace elements and isotopes. This month, in "Tracking Trace Elements and Isotopes in the Oceans," we follow up with Jacquot as he details the highs, lows and initial findings from the cruise, which was unfortunately cut short due to a ship...

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2011-04-05 09:30:00

Patrick Lynch, NASA's Earth Science News Team Mary Cleave left the NASA astronaut corps in the early 1990s to make a rare jump from human spaceflight to Earth science. She was going to work on an upcoming mission to measure gradations in ocean color "“ something she had actually seen from low-Earth orbit with her own eyes. From space, differing densities of phytoplankton and algae and floating bits of plant life reveal themselves as so many blues and greens. For Cleave, a former...


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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