HOME >> BIOLOGY >> NEWS
Regardless of global warming, rising CO2 levels threaten marine life

CHAMPAIGN, Ill. -- Like a piece of chalk dissolving in vinegar, marine life with hard shells is in danger of being dissolved by increasing acidity in the oceans.

Ocean acidity is rising as sea water absorbs more carbon dioxide released into the atmosphere from power plants and automobiles. The higher acidity threatens marine life, including corals and shellfish, which may become extinct later this century from the chemical effects of carbon dioxide, even if the planet warms less than expected.

A new study by University of Illinois atmospheric scientist Atul Jain, graduate student Long Cao and Carnegie Institution scientist Ken Caldeira suggests that future changes in ocean acidification are largely independent of climate change. The researchers report their findings in a paper accepted for publication in the journal Geophysical Research Letters, and posted on its Web site.

"Before our study, there was speculation in the academic community that climate change would have a big impact on ocean acidity," Jain said. "We found no such impact."

In previous studies, increasing levels of carbon dioxide in the atmosphere led to a reduction in ocean pH and carbonate ions, both of which damage marine ecosystems. What had not been studied before was how climate change, in concert with higher concentrations of carbon dioxide, would affect ocean chemistry and biology.

To investigate changes in ocean chemistry that could result from higher temperatures and carbon-dioxide concentrations, the researchers used an Earth-system model called the Integrated Science Assessment Model. Developed by Jain and his graduate students, the model includes complex physical and chemical interactions among carbon-dioxide emissions, climate change, and carbon-dioxide uptake by oceans and terrestrial ecosystems.

The ocean-surface pH has been reduced by about 0.1 during the past two centuries. Using ISAM, the researchers found ocean pH would decline a total of 0.31 by the
'"/>

Contact: James E. Kloeppel
kloeppel@uiuc.edu
217-244-1073
University of Illinois at Urbana-Champaign
8-Mar-2007


Page: 1 2 3

Related biology news :

1. Revolutionary global environment fund announces $50M expansion
2. 1,000-year-old Arctic ponds disappearing due to global warming
3. Desertification: UN experts prescribe global policy overhaul to avoid looming mass migrations
4. Scientists call for global push to advance research in synthetic biology
5. Northern forests less effective than tropical forests in reducing global warming
6. UN issues analysis of global investors sustainable energy gold rush
7. Gannet population under threat from global warming
8. Yale journal examines the global impact of cities
9. Researchers examine carbon capture and storage to combat global warming
10. QUT microgravity tower attracts global scientific community
11. Study warns climate change and deforestation will lead to declines in global bird diversity

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/13/2017)... 13, 2017 UBM,s Advanced Design and Manufacturing ... feature emerging and evolving technology through its 3D Printing ... run alongside the expo portion of the event and ... demonstrations focused on trending topics within 3D printing and ... manufacturing event will take place June 13-15, 2017 at the ...
(Date:4/11/2017)... BEACH GARDENS, Fla. , April 11, 2017 ... identity management and secure authentication solutions, today announced ... contract by Intelligence Advanced Research Projects Activity (IARPA) ... for IARPA,s Thor program. "Innovation has ... onset and IARPA,s Thor program will allow us ...
(Date:4/11/2017)... , April 11, 2017 No two ... researchers at the New York University Tandon School ... Engineering have found that partial similarities between prints ... used in mobile phones and other electronic devices ... The vulnerability lies in the fact that ...
Breaking Biology News(10 mins):
(Date:6/20/2017)... NEWTOWN SQUARE, Pa. , June 20, 2017 /PRNewswire/ ... technology, is pleased to announce the issuance of a ... treating gout or hyperuricemia by the U.S. Patent and ... Biotech Inc., a winner of the Buzz of Bio ... , is akin to developing non-drug approaches to ...
(Date:6/19/2017)... ... June 19, 2017 , ... ... clinical development reported today that it is launching two new additions of its ... be demonstrating new capabilities at the DIA 2017 Annual Meeting in Chicago, IL, ...
(Date:6/16/2017)... , ... June 16, 2017 , ... CTNext , ... Innovation Awards (EIA), held at The LOFT at Chelsea Piers in Stamford. , Nine ... to a panel of judges for an opportunity to secure $10,000 awards to help ...
(Date:6/15/2017)... , ... June 15, 2017 , ... ... director for DuPont Biofuels, will be speaking at Bloomberg’s 2017 Sustainable Business ... join other leading environmental and sustainability officials on a panel titled “Developing a ...
Breaking Biology Technology:
Cached News: