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:1/4/2017)... , Jan. 4, 2017  For the thousands of attendees at ... global leader in connected health and biometric measurement devices and services, will ... On display in A&D Medical,s special CES Exhibit Suite ... the ongoing expansion of the company,s WellnessConnected product platform.  ... ...
(Date:12/20/2016)... , Dec. 20, 2016 The ... sharing, rental and leasing is stoking significant interest ... radio frequency technology, Bluetooth low energy (BLE), biometrics ... as the next wave of wireless technologies in ... access system to advanced access systems opens the ...
(Date:12/16/2016)... 16, 2016 The global wearable medical device market, in ... 2021 from USD 5.31 billion in 2016, at a CAGR of ... ... technological advancements in medical devices, launch of a growing number of ... connectivity among healthcare providers, and increasing focus on physical fitness. ...
Breaking Biology News(10 mins):
(Date:1/12/2017)... ... ... Huffman Engineering, Inc. , a leader in control systems integration, today ... office as a chemical engineer. In his new role, Beck will use his ... science manufacturing and water/wastewater industries. , Prior to joining Huffman Engineering, Beck served for ...
(Date:1/12/2017)... , January 12, 2017 A new report published by ... Users - Global Opportunity Analysis and Industry Forecast, 2014-2022," projects that the global in ... 2015, growing at a CAGR of 15.07% during the forecast period. ... ... ...
(Date:1/11/2017)... ... January 11, 2017 , ... Ovation Fertility™ ... and reliable preimplantation genetic screening (PGS). , “Our genetics and IVF teams are ... Fertility Genetics Scientific Director Amy Jones, M.S., ELD (ABB) , who has ...
(Date:1/11/2017)... , ... January 11, 2017 , ... ... year and costing healthcare systems more than $23.7 billion, healthcare systems are ... , Among the most common sepsis-causing pathogens are bacteria and the yeast ...
Breaking Biology Technology:
Cached News: