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:1/26/2017)... , Jan. 26, 2017  Crossmatch, a leading provider ... new solution aimed at combatting fraud, waste and abuse ... introduced at the Action on Disaster Relief conference in ... point for UN agencies and foreign assistance organizations throughout ... waste and abuse are a largely unacknowledged problem in ...
(Date:1/24/2017)... , Jan. 24, 2017  It sounds simple ... sock that monitors vital signs and alerts parents ... infant,s oxygen saturation level drops. But pediatric experts ... to parents, with no evidence of medical benefits, ... are marketed aggressively to parents of healthy babies, ...
(Date:1/19/2017)... , Jan. 19, 2017 Sensory ... experience and security for consumer electronics, and ... processing systems and cybersecurity solutions, today announced a ... and financial institutions worldwide to bolster security of ... end-to-end secure user authentication platforms they offer, innerCore ...
Breaking Biology News(10 mins):
(Date:2/18/2017)... ... February 17, 2017 , ... ... business in Hong Kong. , Nerium International is proud to introduce its Age-Defying ... Contour Cream, NeriumAD™ Formula to consumers across Hong Kong. The luxury skincare products ...
(Date:2/17/2017)... Mass. , Feb. 17, 2017  If ... small tumor had a mutation-conferring resistance to chemotherapy, ... Recently, genomics research has focused on finding these ... or even from circulating tumor DNA in blood ... new oncology therapeutics. Unfortunately, however, detecting ...
(Date:2/16/2017)... ... February 16, 2017 , ... Avomeen & MichBio will be hosting a BioMixer ... at Avomeen Analytical Services (4840 Venture Dr., Ann Arbor, Michigan 48108). BioMixers are ... opportunity to interact with peers, make new connections and talk bio biz. , Cost:, ...
(Date:2/16/2017)... , Feb. 16, 2017  ArmaGen, Inc., a ... therapies to treat severe neurological disorders, today reported ... with AGT-181, the company,s investigational therapy for the ... as mucopolysaccharidosis type I, or MPS I). The ... (POC) study, presented today at the 13 th ...
Breaking Biology Technology:
Cached News: