Navigation Links
Significant role of oceans in onset of ancient global cooling
Date:5/26/2011

Thirty-eight million years ago, tropical jungles thrived in what are now the cornfields of the American Midwest and furry marsupials wandered temperate forests in what is now the frozen Antarctic.

The temperature differences of that era, known as the late Eocene, between the equator and Antarctica were half what they are today.

A debate has been ongoing in the scientific community about what changes in our global climate system led to such a major shift from the more tropical, greenhouse climate of the Eocene to modern and much cooler climates.

New research results published in this week's issue of the journal Science, led by Rensselaer Polytechnic Institute scientist Miriam Katz, are providing some of the strongest evidence to date that the Antarctic Circumpolar Current (ACC) played a key role in the shift.

"What we have found is that the evolution of the Antarctic Circumpolar Current influenced global ocean circulation much earlier than previous studies have shown," said Katz. "This finding is particularly significant because it places the impact of initial shallow ACC circulation in the same interval when the climate began its long-term shift to cooler temperatures."

There has been a debate over the past 40 years on what role the Antarctic Circumpolar Current had in the past cooling trend.

"These climate changes are one of the most significant shifts in Earth's history, from early Cenozoic 'greenhouse' climates to the mid- to late Cenozoic 'icehouse' that saw repeated massive glaciations of the polar regions," said Candace Major, program director in the National Science Foundation's (NSF) Division of Ocean Sciences.

The research was funded by NSF in partnership with the Integrated Ocean Drilling Program, and its predecessor programs, the Ocean Drilling Program and Deep Sea Drilling Project.

"The work by Katz and colleagues is the first to demonstrate that the basic structure of cu
'/>"/>

Contact: Cheryl Dybas
cdybas@nsf.gov
703-292-7734
National Science Foundation
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Drug therapy shows significant benefit in treating a leading cause of childhood blindness
2. MedNet Solutions Announces Significant Enhancements to ENLIGHTEN, Its Flagship EDC / eClinical Solution
3. MedNet Solutions Announces Significant Enhancements to ENLIGHTEN, Its Flagship EDC / eClinical Solution
4. New study shows soy protein lowers non-HDL cholesterol significantly more than milk protein
5. Slight change in wind turbine speed significantly reduces bat mortality
6. Significant weight-loss from surgery decreases risk for cardiovascular disease in women
7. Fractures significantly reduce quality of life in women with osteoporosis
8. Online release of North American industrial pollution data reveals significant reporting gaps
9. Scientists identify seamounts as significant, unexplored territory
10. Significant findings about protein architecture may aid in drug design, generation of nanomaterials
11. New discovery is a significant boost to cancer research
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Significant role of oceans in onset of ancient global cooling
(Date:2/5/2015)... NXT-ID, Inc. (NASDAQ: NXTD and ... focused on the growing mobile commerce market, announces the ... as part of its 2015 marketing and branding initiatives ... new consumer website for Wocketwallet.com earlier this month. ... said, "Our new corporate website naturally showcases our premiere ...
(Date:2/5/2015)... 2015 NXT-ID, Inc. (NASDAQ: NXTD ... authentication company focused on the growing mobile commerce market, ... Online CEO Conference on January 29 th at ... , CEO of NXT-ID will present and host a ... smart wallet and its full suite of biometric technologies. ...
(Date:2/5/2015)... Feb. 3, 2015 Despite a lack ... industries such as consumer electronics, automotive, storage and ... mount technology (SMT) screen printers. Innovations in electronics ... will push the adoption curve up. Meanwhile, sale ... as glue dispensers are indispensable in the production ...
Breaking Biology News(10 mins):NXT-ID, Inc. Launches New Corporate Website As Part Of Ongoing 2015 Branding Initiatives For Wocket Smart Wallet 2NXT-ID, Inc. Launches New Corporate Website As Part Of Ongoing 2015 Branding Initiatives For Wocket Smart Wallet 3CEO of NXT-ID, Inc. to Discuss Company's Biometric Technologies at RedChip Online Conference January 29th 2CEO of NXT-ID, Inc. to Discuss Company's Biometric Technologies at RedChip Online Conference January 29th 3End-user Demand Spurs Global SMT Screen Printers and Glue Dispensers Market 2End-user Demand Spurs Global SMT Screen Printers and Glue Dispensers Market 3
... new report published in the international conservation journal ... Africa promoting the reintroduction of captive lions do little to ... Released ,Early Online, on July 31, ,Walking with lions: ... leo ) in species restoration, was authored by a blue-ribbon ...
... and endangered animal -- be it a tiger in Nepal ... to ask people "how do you FEEL about your predatory ... out what protected species need like habitat and food ... for their human neighbors to tolerate them. A Michigan State ...
... Olympic athletes may be the best trained and physically ... susceptible to back pain. BackPainRelief.net is releasing an infographic ... injuries can be avoided. (Photo: ... for a number of injuries, and back pain is ...
Cached Biology News:Report: Captive lion reintroduction programs in Africa operate under 'conservation myth' 2Report: Captive lion reintroduction programs in Africa operate under 'conservation myth' 3To know a tiger is at least to start tolerating them, study shows 2To know a tiger is at least to start tolerating them, study shows 3Backpainrelief.net Tackles Sports Injuries with Infographic 2
(Date:3/4/2015)... March 04, 2015 Proove ... Personalized Medicine, is excited to announce the launch ... to Optimize the Management of Pain”. , The ... Medscape.com for the next year. The focus of ... to recognize inadequate pain treatments, integrate appropriate pain ...
(Date:3/4/2015)... March 4, 2015  BioClinica®, Inc., a ... provider, today announced that clinical trial professionals ... at its annual European User Conference in ... discuss the use of its eClinical technologies ... technologies include: the Microsoft Office-Smart OnPoint CTMS; ...
(Date:3/4/2015)... Follow us on LinkedIn - ... growing technologies in the life sciences industry. Growing global ... growth in nucleic acid detection technologies like qPCR and ... will continue to benefit the qPCR and dPCR instruments ... pharma, biotech, food & beverage to animal feed, will ...
(Date:3/4/2015)... 2015 Lancée par ... en décembre 2011, l,étude collaborative française ... qui compare   l es microsphères en ... dans le carcinome hépatocellulaire avancé, a recruté plus ... avancé   ; les résultats sont attendus fin ...
Breaking Biology Technology:Proove Biosciences Launches CME Accredited Program with Medscape 2Proove Biosciences Launches CME Accredited Program with Medscape 3BioClinica Teams With Pharma To Tackle Clinical Trial Challenges In Europe 2BioClinica Teams With Pharma To Tackle Clinical Trial Challenges In Europe 3Focus on Quantifying Nucleic Acid Molecules Spurs Growth in the qPCR & dPCR Instrumentation Market, According to a New Report by Global Industry Analysts, Inc. 2Focus on Quantifying Nucleic Acid Molecules Spurs Growth in the qPCR & dPCR Instrumentation Market, According to a New Report by Global Industry Analysts, Inc. 3Focus on Quantifying Nucleic Acid Molecules Spurs Growth in the qPCR & dPCR Instrumentation Market, According to a New Report by Global Industry Analysts, Inc. 4Traitement du cancer primitif du foie : Recrutement terminé pour l'étude SARAH et résultats attendus fin 2016 2Traitement du cancer primitif du foie : Recrutement terminé pour l'étude SARAH et résultats attendus fin 2016 3Traitement du cancer primitif du foie : Recrutement terminé pour l'étude SARAH et résultats attendus fin 2016 4Traitement du cancer primitif du foie : Recrutement terminé pour l'étude SARAH et résultats attendus fin 2016 5Traitement du cancer primitif du foie : Recrutement terminé pour l'étude SARAH et résultats attendus fin 2016 6
... Company Focused on iPS Technology, SAN ... and The J.,David Gladstone Institutes, an independent ... research collaboration and licensing,agreement to focus on ... (Logo: http://www.newscom.com/cgi-bin/prnh/20080616/AQM126LOGO ), iPS cells ...
... SAN FRANCISCO, Calif., June 16 Anesiva,Inc. (Nasdaq: ... Kranda as,president, chief executive officer and a member of ... Kranda succeeds John P. McLaughlin,who resigned as chief executive ... business interests, while remaining a consultant to the,company., ...
... Virginia, ROSH HA,AYIN, Israel, June 16 ,EnzySurge Ltd. ... wound management, recently announced the formation of its,Scientific ... practitioners with diversified expertise in chronic wounds.,The Company ... PhD, Diane L.,Krasner, PhD RN, FAAN, Joseph L. ...
Cached Biology Technology:The Gladstone Institutes and iZumi Bio Announce Broad Partnership in Regenerative Medicine and Cardiovascular Disease 2Anesiva Names Michael L. Kranda as President, Chief Executive Officer and Member of Its Board of Directors 2Anesiva Names Michael L. Kranda as President, Chief Executive Officer and Member of Its Board of Directors 3EnzySurge, Maker of DermaStream(TM), Announces the Formation of its Scientific Advisory Board 2EnzySurge, Maker of DermaStream(TM), Announces the Formation of its Scientific Advisory Board 3EnzySurge, Maker of DermaStream(TM), Announces the Formation of its Scientific Advisory Board 4
... description: Aminopropylsilane is perhaps ... slide chemistry for microarray ... Slides for Microarrays provide ... substrate for printing PCR ...
Designed for use with any of the Agencourt kits in tube format....
... This CLS number is a new ... Cornings product number. If showing no ... old Sigma-Aldrich number (Z71,405-4) or contact ... diam. 60 mm volume diam. ...
... DAPI (4,6-diamidine-2-phenylindole, dihydrochloride) is a ... nucleus blue in color. The ... contrast to red fluorochromes such ... or R-Phycoerythrin. DAPI can be ...
Biology Products: