Ocean acidification
hideOcean acidification is the name given to the ongoing decrease in the pH of the Earth's oceans, caused by their uptake of anthropogenic carbon dioxide from the atmosphere. Between 1751 and 1994 surface ocean pH is estimated to have decreased from approximately 8.179 to 8.104 (a change of -0.075).
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News tagged with ocean acidification
Global study of salmon shows: 'Sustainable' food isn't so sustainable
18 hours ago |
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Popular thinking about how to improve food systems for the better often misses the point, according to the results of a three-year global study of salmon production systems. Rather than pushing for organic or land-based ...
Australian scientists call for urgent 'global cooling' to save coral reefs
Nov 09, 2009 |
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(PhysOrg.com) -- Australian marine scientists have issued an urgent call for massive and rapid worldwide cuts in carbon emissions, deep enough to prevent atmospheric CO2 levels rising to 450 parts per million (ppm).
Ocean acidification may contribute to global shellfish decline
Space & Earth / Earth Sciences
Oct 26, 2009 |
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Relatively minor increases in ocean acidity brought about by high levels of carbon dioxide have significant detrimental effects on the growth, development, and survival of hard clams, bay scallops, and Eastern ...
Corals 'could starve in high CO2'
Oct 05, 2009 |
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(PhysOrg.com) -- As human activity pumps more and more carbon into the atmosphere, a new threat has emerged to the world's coral reefs - starvation.
Ocean acidification: impact on key organisms of oceanic fauna
Sep 15, 2009 |
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In addition to global warming, carbon dioxide emissions cause another, less well-known but equally serious and worrying phenomenon: ocean acidification. Researchers in the Laboratoire d'Océanographie ...
Great Barrier Reef under serious threat: report
Sep 02, 2009 |
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Australia's Great Barrier Reef is in serious jeopardy as global warming and chemical runoff threaten to kill marine species and cause serious outbreaks of disease, a report warned Wednesday.
Research finds higher acidity in Alaska waters
Space & Earth / Earth Sciences
Aug 24, 2009 |
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(AP) -- Erosion threatens to topple coastal Alaskan villages. Melting ice threatens polar bears. Now, a marine scientist says the state's marine waters are turning acidic from absorbing greenhouse gases faster ...
New findings show increased ocean acidification in Alaska waters
Space & Earth / Earth Sciences
Aug 13, 2009 |
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The same things that make Alaska's marine waters among the most productive in the world may also make them the most vulnerable to ocean acidification. According to new findings by a University of Alaska Fairbanks scientist, ...
Researchers reveal ocean acidification at Station ALOHA
Space & Earth / Earth Sciences
Aug 06, 2009 |
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The burning of fossil fuels has released tremendous amounts of the greenhouse gas carbon dioxide (CO2) into the atmosphere, significantly impacting global climate. Were it not for the absorption of CO2 by ...
Global warming tactic cools climate but won’t help corals, say researchers
Space & Earth / Earth Sciences
Jul 03, 2009 |
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(PhysOrg.com) -- “Geoengineering” experiments proposed to reduce global warming by blocking sunlight with atmosphere-injected particles may cool the world but still leave carbon dioxide levels dangerously high, Stanford scientists ...
Corals stay close to home
Jun 26, 2009 |
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The thought of coral reefs tends to conjure up images of tropical vacations, complete with snorkeling among tropical fish in crystal clear waters.
High carbon dioxide levels cause abnormally large fish ear bones
Jun 25, 2009 |
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Rising carbon dioxide levels in the ocean have been shown to adversely affect shell-forming creatures and corals, and now a new study by researchers at Scripps Institution of Oceanography at UC San Diego has ...
Elevated water temperature and acidity boost growth of key sea star species
Jun 01, 2009 |
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New research by zoologists at the University of British Columbia indicates that elevated water temperatures and heightened concentrations of carbon dioxide can dramatically increase the growth rate of a keystone species of ...
Studies shed light on collapse of coral reefs (w/Video)
May 28, 2009 |
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An explosion of knowledge has been made in the last few years about the basic biology of corals, researchers say in a new report, helping to explain why coral reefs around the world are collapsing and what ...
Acidic oceans could aid photosynthesis
May 18, 2009 |
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(PhysOrg.com) -- Groundbreaking Victoria University research shows that ocean acidification may have no negative effect on tropical corals and local sea anemones - in fact it may improve photosynthesis.
