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:
TAG: Regardless global warming rising levels threaten marine life

(Date:7/25/2014)... (SB) is a complex congenital central nervous system ... of the neural tubes during the embryonic phase. ... and fecal incontinence and neurocognitive retardation. Such problems ... of life. Researchers at Ankara Physical Medicine and ... functional performance in children with SB, using the ...
(Date:7/25/2014)... of a molecular testing panel developed at UPMC ... initial surgery for patients with thyroid nodules and ... Cancer Institute (UPCI), partner with UPMC CancerCenter., The ... and other diagnostic testing agencies, improved the chances ... 30 percent, according to the study published this ...
(Date:7/24/2014)... Citing many sobering examples of how wildlife loss leads ... article co-authored by Wildlife Conservation Society (WCS) Health ... Christopher Golden, calls for an interdisciplinary approach to tackle ... directly supports about 15% of the world,s people and ... world,s poor. It should come as no surprise that ...
Breaking Biology News(10 mins):Test increases odds of correct surgery for thyroid cancer patients 2Test increases odds of correct surgery for thyroid cancer patients 3New study draws links between wildlife loss and social conflicts 2
(Date:7/25/2014)... Lawrence Livermore scientists Charles Westbrook and ... of " The World's Most Influential Scientific Minds ." ... researchers who were identified by analyzing citation data over ... the highest-impact work (2002-2012 and 2012-2013). The two were ... modeling . , "This recognition is a great honor ...
(Date:7/25/2014)... BEIJING , July 25, 2014 Sinovac Biotech ... biopharmaceutical products in China , today announced ... second quarter ended June 30, 2014, after market close on ... conference call prior to the market opening on Friday, August ... at 8:00 p.m. China Standard Time) to review the Company,s ...
(Date:7/24/2014)... , July 24, 2014  Now available is ... home. Rehealth Regenerative Therapies , located in ... other physically active people a new health option: ... Regardless of age, countless patients suffer from joint and ... such as muscle tears, torn rotator cuff, tennis elbow, ...
(Date:7/24/2014)... leader Yung-Eun Sung has announced that they have ... graphenes which can be applied as high performance ... Sung is both a group leader at the ... Science* (IBS) and a professor at the Seoul ... with regards to the development of relative simplicity, ...
Breaking Biology Technology:Scientists Burst onto Influential List for Combustion Research 2Scientists Burst onto Influential List for Combustion Research 3Scientists Burst onto Influential List for Combustion Research 4Sinovac to Host Conference Call to Report Second Quarter 2014 Unaudited Financial Results 2Stem Cells In Sports Injuries, Joints And Muscular Pain 2Stem Cells In Sports Injuries, Joints And Muscular Pain 3
Cached News: