Navigation Links
Scientists connect seawater chemistry with climate change and evolution
Date:7/19/2012

TORONTO, ON Humans get most of the blame for climate change, with little attention paid to the contribution of other natural forces. Now, scientists from the University of Toronto and the University of California Santa Cruz are shedding light on one potential cause of the cooling trend of the past 45 million years that has everything to do with the chemistry of the world's oceans.

"Seawater chemistry is characterized by long phases of stability, which are interrupted by short intervals of rapid change," says Professor Ulrich Wortmann in the Department of Earth Sciences at the University of Toronto, lead author of a study to be published in Science this week. "We've established a new framework that helps us better interpret evolutionary trends and climate change over long periods of time. The study focuses on the past 130 million years, but similar interactions have likely occurred through the past 500 million years."

Wortmann and co-author Adina Paytan of the Institute of Marine Sciences at the University of California Santa Cruz point to the collision between India and Eurasia approximately 50 million years ago as one example of an interval of rapid change. This collision enhanced dissolution of the most extensive belt of water-soluble gypsum on Earth, stretching from Oman to Pakistan, and well into Western India remnants of which are well exposed in the Zagros mountains.

The authors suggest that the dissolution or creation of such massive gyspum deposits will change the sulfate content of the ocean, and that this will affect the amount of sulfate aerosols in the atmosphere and thus climate. "We propose that times of high sulfate concentrations in ocean water correlate with global cooling, just as times of low concentration correspond with greenhouse periods," says Paytan.

"When India and Eurasia collided, it caused dissolution of ancient salt deposits which resulted in drastic changes in seawater chemistry," Payt
'/>"/>

Contact: Sean Bettam
s.bettam@utoronto.ca
416-946-7950
University of Toronto
Source:Eurekalert  

0

GOOD

Page: 1 2

Related biology news :

1. Stanford scientists develop gene therapy approach to grow blood vessels in ischemic limbs
2. Queens scientists seek vaccine for Pseudomonas infection
3. Scientists produce eye structures from human blood-derived stem cells
4. American Society of Plant Biologists honors early career women scientists
5. Brandeis scientists win prestigious prize for circadian rhythms research
6. Scientists discover new method of proton transfer
7. Salk scientists open new window into how cancers override cellular growth controls
8. WileyChina.com - Now Featuring Bespoke Pages for China’s Life Scientists
9. Scientists win $2 million to study new pathway in development and maintenance of lymphoma
10. UGA scientists reveal genetic mutation depicted in van Goghs sunflower paintings
11. Genetic mutation depicted in van Goghs sunflower paintings revealed by scientists
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Scientists connect seawater chemistry with climate change and evolution
(Date:6/16/2013)... HIV prevention programs for female sex workers in India ... infections (STIs), a University of Toronto study has found. ... with HIV, mostly in the southern states of Andhra ... by Professor Prabhat Jha from U of T,s Dalla ... Centre for Global Health Research (CGHR), examined the impact ...
(Date:6/16/2013)... snap" 116 million years ago triggered a similar marine ... a result of global warming, according to research published ... involving experts from the universities of Newcastle, UK, Cologne, ... and a crash in the marine ecosystem during the ... the first time the amplitude and duration of the ...
(Date:6/14/2013)... Oklahoma researchers will collaborate with researchers from Oklahoma ... the University of Tulsa to advance understanding of ... climate change and variability in the state. , ... receive a $20 million National Science Foundation Experimental ... strategically aligned, innovative research over the next five ...
Breaking Biology News(10 mins):HIV prevention among female sex workers in India reduces HIV and syphilis 2Global cooling as significant as global warming 2OU researchers collaborate on $20 million NSF EPSCoR grant 2OU researchers collaborate on $20 million NSF EPSCoR grant 3
... An international team of scientists, including botanists from the University ... be used to catalogue the world,s plants using a technique ... method that uses a short genetic marker in an organism,s ... "Barcoding provides an efficient means by which we can ...
... promising data from a clinical study showing patient-specific ... and immune cells were well tolerated and resulted ... metastatic melanoma whose disease had been minimized by ... "Phase II Trial of Dendritic Cells Loaded with ...
... Mitochondrial diseases disrupt the power generating machinery within cells ... in the lungs or respiratory tract. A new study ... shows that infection with the pneumonia causing bacteria ... a signaling protein that is associated with mitochondrial disease. ...
Cached Biology News:University of Toronto helps to 'barcode' the world's plants 2Study shows cancer vaccines led to long-term survival for patients with metastatic melanoma 2Stress signals link pre-existing sickness with susceptibility to bacterial infection 2
(Date:6/16/2013)... This training is ideal for those who will ... software industry or those who want to explore Agile and ... The topics that will be covered in the 1-day Agile ... scrum artifacts, and scrum simulation (optional). , The trainings ... June 28, 2013 , Click here to register for a ...
(Date:6/14/2013)... June 14, 2013 These couplings are ... come equipped with a new and improved “Easy Grip ... more secure grip and reliable connection every time. , ... for use on medical applications such as ... pressure cuff manufacturers with better, more reliable, high quality, ...
(Date:6/14/2013)... Rosacea is said to affect 16 million Americans, eczema, ... it seems that most of the population have one or ... reports, often deciphering the difference between one skin condition ... have similar symptoms. Probiotic Action explains how these skin conditions ... effectively. , Rosacea, Acne and Eczema are conditions that react ...
(Date:6/14/2013)... , June 14, 2013  The Pittsburgh Life Sciences ... levels of investment that were necessitated by delays in ... investment climate and the uncertainty of state funding. ... said, "As the region,s only pure life sciences investment ... by the PLSG Board of Directors, were necessary to ...
Breaking Biology Technology:Affordable Scrum Trainings in Denver, CO – 8 PDUs (June 28, 2013) by Conscires Agile Practices 2LinkTech Inc. Launches Ideal Replacement for a Luer Fitting 2LinkTech Inc. Launches Ideal Replacement for a Luer Fitting 3Rosacea, Acne, or Eczema? Probiotic Action Offers a Topical Probiotic to Treat the Most Common Skin Conditions 2Pittsburgh Life Sciences Greenhouse Makes Significant Reductions Due to Uncertain Funding 2
... ... investment bank KTA Capital,s client Neuren Pharmaceuticals Ltd (ASX:NEU) has agreed an AU$6.7 mil ... by KTA Capital as Neuren,s exclusive placement agent and advisor. , ... New York (PRWEB) November 23, 2009 ...
... ... field remains the only one to show consistent growth during the U.S. recession. However, clinics ... actually cut medical personnel, instead of just administrators. , ... (Vocus) November 24, 2009 -- Health care employment continued growing in ...
... 24 Blue Marble Energy Corp. announced today that ... were recently awarded $2 million by Washington State,s Community ... construct the state,s first specialty biochemical biorefinery in Lincoln ... speed the development of our biorefinery and bring over ...
Cached Biology Technology:KTA Capital Arranges an AU$6.7 Million Private Placement by Neuren Pharmaceuticals 2The MedZilla Report for October 2009 - Health Care Employment Grows Again in October Even As Clinics, Specialty Centers Close 2The MedZilla Report for October 2009 - Health Care Employment Grows Again in October Even As Clinics, Specialty Centers Close 3The MedZilla Report for October 2009 - Health Care Employment Grows Again in October Even As Clinics, Specialty Centers Close 4Blue Marble Energy, OPDA Awarded $2M by WA's Community Economic Revitalization Board 2
Immunogen: Synthetic peptide (aa sequence is considered to be commercially sensitive) Storage: -20 C, Avoid Freeze/Thaw Cycles...
...
TRIzol Reagents are ready-to-use monophasic solutions of phenol and guanidine isothiocyanate suitable for isolating total RNA DNA and proteins (16)....
...
Biology Products: