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Latest Ocean acidification Stories

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2010-04-20 14:30:00

Acidifying oceans dramatically stunt growth of already threatened shellfish As we prepare to celebrate Earth Day on April 22, we can add another species, one of widespread ecological and economic importance, to the list of the beleaguered. From East Coast to West and around the world, global warming and its effects have descended upon shellfish reefs, particularly those formed by the Olympia oyster. More than one-third of the world's human-caused carbon dioxide emissions have entered the...

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2010-03-29 06:34:14

The rise in human emissions of carbon dioxide is driving fundamental and dangerous changes in the chemistry and ecosystems of the world's oceans, international marine scientists warned today. "Ocean conditions are already more extreme than those experienced by marine organisms and ecosystems for millions of years," the researchers say in the latest issue of the journal Trends in Ecology and Evolution (TREE). "This emphasizes the urgent need to adopt policies that drastically reduce CO2...

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2010-03-26 06:10:00

Coral reefs are slowly becoming extinct and could disappear entirely within the next century -- which could have disastrous results all over the world, experts claim. According to National Oceanic and Atmospheric Administration (NOAA) statistics published in a March 25 Associated Press (AP) article, roughly 19-percent of the Earth's coral reefs have already disappeared, and an additional 15-percent could be gone within the next two decades. Furthermore, Dr. Kent Carpenter, a professor at Old...

2010-03-24 13:52:08

Climate change is just one of the problems With climate change at the front and center of today's political debates, the other indicators of the Earth's environmental health are not always top of mind in the public conscience. Featured as part of the cover story of Scientific American magazine's April issue, which hits newsstands on Wednesday, March 24, U of M professor Jon Foley makes the case for why we need to pay more attention to all environmental processes that contribute to the Earth's...

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2010-03-01 07:20:00

Fossil corals, up to half a million years old, are providing fresh hope that coral reefs may be able to withstand the huge stresses imposed on them by today's human activity. Reef ecosystems were able to persist through massive environmental changes imposed by sharply falling sea levels during previous ice ages, an international scientific team has found. This provides new hope for their capacity to endure the increasing human impacts forecast for the 21st century. In the world's first study...

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2010-02-25 12:51:37

Results of Northwest Atlantic Field Program Could Be Applied Worldwide A three-year field program now underway is measuring carbon distributions and primary productivity in the Northwest Atlantic Ocean to help scientists worldwide determine the impacts of a changing climate on ocean biology and biogeochemistry. The study, Climate Variability on the East Coast (CliVEC), will also help validate ocean color satellite measurements and refine biogeochemistry models of ocean...

2010-02-04 14:29:09

The increasing acidity of the world's oceans - and that acidity's growing threat to marine species - are definitive proof that the atmospheric carbon dioxide that is causing climate change is also negatively affecting the marine environment, says world-renowned Antarctic marine biologist Jim McClintock, Ph.D., professor in the University of Alabama at Birmingham (UAB) Department of Biology. "The oceans are a sink for the carbon dioxide that is released into the atmosphere," says McClintock,...

3297e4a74a1612b2505d74b6c20b48481
2010-01-10 13:08:21

A study by the University of Exeter provides the first evidence that coral reefs can recover from the devastating effects of climate change. To be published Monday January 11 in the journal PLOS One, the research shows for the first time that coral reefs located in marine reserves can recover from the impacts of global warming. Scientists and environmentalists have warned that coral reefs may not be able to recover from the damage caused by climate change and that these unique environments...

a4eaeda0123dff7c4356d5f88b21fb851
2010-01-08 13:22:59

The impact on levels of carbon dioxide in the Earth's atmosphere by the decaying remains of a group of marine creatures that includes starfish and sea urchin has been significantly underestimated. "Climate models must take this carbon sink into account," says Mario Lebrato, lead author of the study. The work was done when he was at the National Oceanography Centre, Southampton (NOCS) and affiliated with the University of Southampton's School of Ocean and Earth Science (SOES); he is now at the...

0cc92237dd18bf5fe2db40cd54c332121
2009-12-22 10:54:03

There is little doubt among scientists now that human carbon dioxide emissions are warming the planet. Another problem of rising atmospheric carbon dioxide (CO2) is that CO2 is being absorbed by the oceans, which increases seawater acidity (lowers the seawater pH). This process, termed 'ocean acidification', has received growing scientific and public interest because it threatens certain groups of marine organisms, including corals. Only recently have researchers realized that man-made carbon...


Latest Ocean acidification 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...

Reef0607
2012-04-03 17:24:13

Rice Coral, (Montipora capitata), also known as Pore Coral, is a species of stony coral in the Acroporidae family. It is found in the tropical north and central areas of the Pacific Ocean at depths down to 66 feet. It is common in the waters near Hawaii, especially where the sea is turbulent. This is a reef-building species that forms colonies. As it matures, it develops tree-like branches. Its corallites are tiny and well separated by a calcareous (calcium carbonate) skeleton. The walls...

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Word of the Day
omadhaun
  • A fool; a simpleton: a term of abuse common in Ireland and to a less extent in the Gaelic-speaking parts of Scotland.
This word is partly Irish in origin.