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
University of Illinois at Urbana-Champaign

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:

(Date:4/13/2016)... physicians supporting Medicaid patients in Central Florida ... telehealth thanks to a new partnership with higi.   ... can routinely track key health measurements, such as blood ... they opt in, share them with IMPOWER clinicians through ... location at no cost. By leveraging this data, IMPOWER ...
(Date:3/29/2016)... LegacyXChange, Inc. (OTC: LEGX ... Protect are pleased to announce our successful effort to ... of writing instruments, ensuring athletes signatures against counterfeiting and ... athletes on LegacyXChange will be assured of ongoing proof ... Bill Bollander , CEO states, "By inserting ...
(Date:3/22/2016)... Ontario , PROVO and ... Newborn Screening Ontario (NSO), which operates the ... for molecular testing, and Tute Genomics and UNIConnect, ... management technology respectively, today announced the launch of a ... next-generation sequencing (NGS) testing panel. NSO ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... 23, 2016   EpiBiome , a precision microbiome ... in debt financing from Silicon Valley Bank (SVB). The ... to advance its drug development efforts, as well as ... "SVB has been an incredible strategic partner to ... traditional bank would provide," said Dr. Aeron Tynes ...
(Date:6/23/2016)... , June 23, 2016 Apellis Pharmaceuticals, ... 1 clinical trials of its complement C3 inhibitor, ... and multiple ascending dose studies designed to assess ... of subcutaneous injection in healthy adult volunteers. ... either as a single dose (ranging from 45 ...
(Date:6/23/2016)... ... 23, 2016 , ... ClinCapture, the only free validated electronic ... showcase its product’s latest features from June 26 to June 30, 2016 for ... Disrupting Clinical Trials in The Cloud during the conference. DIA (Drug Information ...
(Date:6/23/2016)... ReportsnReports.com adds 2016 global ... pharmaceuticals section with historic and forecast data along ... Complete report on the Cell Culture ... companies and supported with 261 tables and figures ... The Global Cell Culture Media Industry ...
Breaking Biology Technology:
Cached News: