News articles on ocean acidification
Mongabay.com news articles on ocean acidification in blog format. Updated regularly.
Ocean acidification may hurt reproduction in marine life
(07/30/2008) Ocean acidification due to rising carbon dioxide levels in the atmosphere may be putting the reproductive capabilities of some marine species at risk, reports a new study published in Current Biology by Swedish and Australian scientists.
Climate change will increase the erosion of coral reefs
(07/28/2008) Coral reefs are particularly susceptible to climate change. Warming waters have been shown to bleach coral, killing off symbiotic algae that provide them with sustenance, and often leading to the death of the coral itself. Much attention has been placed on bleaching coral, but now scientists have discovered an additional danger to coral reefs in a warming world: erosion.
1/3 of corals face extinction
(07/10/2008) Nearly one-third of reef-building corals are vulnerable to extinction, according to an assessment of 845 species of coral. Rising temperatures, increased incidence of disease, and human disturbance are driving the trend.
Good news for reefs: giant coral structure found off Brazil
(07/07/2008) Amid a series of dire reports on the status of coral reefs, scientists announced the discovery of a reef off the southern coast of Brazil's Bahia state that doubles the size of the Southern Atlantic Ocean's largest and richest reef system, the Abrolhos Bank.
U.S. coral reefs in trouble
(07/07/2008) Nearly half of U.S. coral reefs are in "poor" or "fair" condition according to a new study by the National Oceanic and Atmospheric Administration (NOAA).
CO2 emissions could doom fishing industry
(07/03/2008) Aside from warming climate, rising carbon dioxide emissions are contributing to ocean acidification, threatening sea live, warn researchers writing in the journal Science. This trend makes it all the more important to reduce emissions, argue the authors.
Ocean acidification worse than expected, threatens sea life
(05/22/2008) Increasing ocean acidification along the continental shelf of North America will likely have negative impacts on marine ecosystems, including the corrosion of calcium carbonate exoskeletons in many organisms, warn researchers writing in the journal Science.
Photos of bizarre creatures discovered in Antarctica
(02/19/2008) Researchers aboard the Aurora Australis, an Australian vessel, have discovered a trove of strange creatures on the sea floor near East Antarctica.
How will global warming affect marine food chains?
(02/17/2008) Rising temperatures and acidity of the world's oceans due to human emissions of carbon dioxide is putting marine food webs at risk warned a researcher speaking at a press briefing at the annual meeting of the American Association for the Advancement of Science in Boston.
Why are oceans at risk from global warming?
(02/17/2008) Climate change is putting the world's oceans at risk by increasing the temperature and acidity of seawater, and altering atmospheric and oceanic circulation, warned a panel of scientists this week at the American Association for the Advancement of Science (AAAS) annual meeting in Boston.
Scientists suggest new geological epoch: ours
(01/30/2008) It would be called the Anthropocene. The word was coined by chemist and Nobel Prize winner Paul Crutzen at a conference in 2000. It denotes a new geological epoch, beginning about 200 years ago at the time of the Industrial Revolution, when our planet's systems were increasingly affected by our species. While the term Anthropocene has been used informally for years, a recent peer-reviewed British paper argues that it is now time to officially accept Anthropocene as a distinct era and to leave the Holocene to the pre-Industrial past.
Global warming will degrade 98% of coral reefs by 2050
(12/13/2007) Ocean acidification caused by human-induced carbon dioxide emissions could dramatically alter the planet's coral reefs and marine food chains, warns research published in the December 14 issue of Science and presented at the fall meeting of the American Geophysical Union (AGU) in San Francisco.
Ocean CO2 collector could fight global warming and ocean acidification
(11/19/2007) Researchers have proposed a geoengineering solution to global warming that involves building a series of water treatment plants that enhance the ability of the ocean to absorb carbon dioxide from the atmosphere by removing hydrochloric acid from seawater by electrolysis.
Global warming is melting soft corals
(11/13/2007) Soft corals are "simply melting and wasting away" due to global warming-induced environmental stress says Dr. Hudi Benayahu, head of Tel Aviv University's Porter School of Environmental Studies.
CO2 emissions cause ocean acidification, threaten sea life
(09/21/2007) Human-induced carbon dioxide (CO2) emissions could alter ocean chemistry to the point where it will violate U.S. Environmental Protection Agency Quality Criteria by mid-century if emissions are not significantly reduce, reports a team of scientists writing in the September 25, 2007 issue of Geophysical Research Letters. The commentary is the first to warn that atmospheric CO2 emissions will cause ocean waters to violate EPA water quality criteria.
Environmentalists may use Endangered Species Act to pressure gov't on global warming
(09/07/2007) The addition of elkhorn and staghorn corals to the Endangered Species Act due to threats from climbing ocean temperatures, may be environmentalists' best weapon for levering the U.S. government into action on global warming, writes Mark Clayton of The Christian Science Monitor.
Industrial pollution acidifies ocean, threatens marine animals
(09/03/2007) Ocean acidification, already a concern due to rising levels of carbon dioxide, is worsening due to nitric acid and sulfuric acid from industry, report researchers writing in this week's issue of the journal Proceedings of the National Academy of Science (PNAS).
Ocean acidification monitoring system launched
(06/13/2007) The first buoy to monitor ocean acidification has been launched in the Gulf of Alaska reports the National Science Foundation (NSF). Scientists hope the instrument, which will transmit data via satellite, will help examine how ocean circulation and ecosystems interact to determine how much carbon dioxide the north Pacific Ocean absorbs each year.
Coral diseases largely result from human activities
(05/17/2007) The apparent increase in infectious disease among coral is likely the result of environmental change and, as such, researchers should focus on understanding the relationship between coral diseases and environmental changes, rather than the diseases themselves, argues a paper published in the August 2007 issue of the Journal of Experimental Marine Biology and Ecology.
Some corals may survive acidification caused by rising CO2 levels
(03/29/2007) Several studies have shown that increased atmospheric carbon dioxide levels are acidifying the world's oceans. This is significant for coral reefs because acidification strips carbonate ions from seawater, making it more difficult for corals to build the calcium carbonate skeletons that serve as their structural basis. Research has shown that many species of coral, as well as other marine microorganisms, fare quite poorly under the increasingly acidic conditions forecast by some models. However, the news may not be bad for all types of corals. A study published in the March 30 issue of the journal Science, suggests that some corals may weather acidification better than others.
Carbon dioxide levels threaten oceans regardless of global warming
(03/08/2007) Rising levels of carbon dioxide will have wide-ranging impacts on the world's oceans regardless of climate change, reports a study published in the March 9, 2007, issue of the journal Geophysical Research Letters.
Some corals can adapt to ocean acidification
(07/06/2006) While scientists warn that increasing ocean acidity will doom marine animals that build skeletons and structural elements out of calcium carbonate, new research has found that corals can change their skeletons, building them out of different minerals depending on the chemical composition of the seawater around them. However, the research provides further evidence that corals are extremely sensitive to rapid environmental change and will be negatively affected by increased carbon dioxide levels in the short-term.
Increasingly acidic oceans damaging to marine life
(07/05/2006) Carbon dioxide emissions are altering ocean chemistry and putting sea life at risk according to a new report released today. The report, "Impacts of Ocean Acidification on Coral Reefs and Other Marine Calcifiers," summarizes known effects of increased atmospheric carbon dioxide on marine organisms that produce calcium carbonate skeletal structures, such as corals. Oceans worldwide absorbed approximately 118 billion metric tons of carbon between 1800 and 1994 according to the report, resulting in increased ocean acidity, which reduces the availability of carbonate ions needed for the production of calcium carbonate structures.
Pacific Ocean getting warmer and more acidic
(03/31/2006) The Pacific Ocean is getting warmer and more acidic, while the amount of oxygen is decreasing, due to increased absorption of atmospheric carbon dioxide say scientists from the National Oceanic and Atmospheric Administration's Pacific Marine Environmental Laboratory and the University of Washington.
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