Navigation Links
A warming climate can support glacial ice
Date:1/10/2008

New research challenges the generally accepted belief that substantial ice sheets could not have existed on Earth during past super-warm climate events. The study by researchers at Scripps Institution of Oceanography at UC San Diego provides strong evidence that a glacial ice cap, about half the size of the modern day glacial ice sheet, existed 91 million years ago during a period of intense global warming. This study offers valuable insight into current day climate conditions and the environmental mechanisms for global sea level rise.

The new study in the Jan. 11 issue of the journal Science titled, Isotopic Evidence for Glaciation During the Cretaceous Supergreenhouse, examines geochemical and sea level data retrieved from marine microfossils deposited on the ocean floor 91 million years ago during the Cretaceous Thermal Maximum. This extreme warming event in Earths history raised tropical ocean temperatures to 35-37C (95-98.6F), about 10C (50F) warmer than today, thus creating an intense greenhouse climate.

Using two independent isotopic techniques, researchers at Scripps Oceanography studied the microfossils to gather geochemical data on the growth and eventual melting of large Cretaceous ice sheets. The researchers compared stable isotopes of oxygen molecules (d18O) in bottom-dwelling and near-surface marine microfossils, known as foraminifera, to show that changes in ocean chemistry were consistent with the growth of an ice sheet. The second method in which an ocean surface temperature record was subtracted from the stable isotope record of surface ocean microfossils yielded the same conclusion.

These independent methods provided Andre Bornemann, lead author of the study, with strong evidence to conclude that an ice sheet about 50-60 percent the size of the modern Antarctic ice cap existed for about 200,000 years. Bornemann conducted this study as a postdoctoral researcher at Scripps Oceanography and continues this r
'/>"/>

Contact: Annie Reisewitz
scrippsnews@ucsd.edu
858-534-3624
University of California - San Diego
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Losing more than we gain from autumn warming in the north
2. Carbon sink capacity in northern forests reduced by global warming
3. Major study concludes that global warming is killing off coral
4. El Niño affected by global warming
5. Global warming and other research from UCLA summit featured in journal
6. Ancient fish bones reveal impacts of global warming beneath the sea
7. New research discredits $100B global warming fix
8. TAU professor finds global warming is melting soft coral
9. Engineered weathering process could mitigate global warming
10. Agricultural soil erosion is not adding to global warming
11. Majority of Americans want local action on global warming, says poll
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
A warming climate can support glacial ice
(Date:12/17/2014)... BELVOIR, Va. , Dec. 15, 2014 /PRNewswire-USNewswire/ ... efforts to make it easier to detect and ... chain. Today the agency started performing ... The capability will validate the authenticity of purchased ... chain. The new quality control measures will be ...
(Date:12/15/2014)... 12, 2014 Research and Markets ... the "Global Facial Recognition Market 2015-2019" ... http://photos.prnewswire.com/prnh/20130307/600769 Facial recognition is ... Facial recognition system measures the overall facial feature ... mouth, and the distance between eyes. Facial recognition ...
(Date:12/10/2014)... NEW YORK , Dec. 8, 2014 You,ve ... online banking account but can,t remember your password, site key ... birthday? Who was your first grade teacher? ... launches the app that will finally put an ... PINs – 1U TM . 1U leverages a ...
Breaking Biology News(10 mins):Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 2Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 3Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 3The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 3
... January 19 Mexican business leader Carlos Slim Hel today ... medicine that will help accelerate progress in public health in ... carried out by the Carlos Slim Institute of Health in ... the National Institute for Genomic Medicine of the Mexican Secretariat ...
... is "Molecule of the Year 2009". This was announced ... Society for Molecular and Cell Biology and Biotechnology Protocols ... Zsuzsanna Izsvk, Dr. Zoltn Ivics and Dr. Lajos Mts ... Berlin-Buch. According to the jury, it was selected out ...
... a specific form of a gene that puts them on ... of cancer, according to a new study by scientists at ... proto-oncogene is activated in a variety of tumor malignancies. The ... a role in neurodevelopment, which is why Katherine E. Burdick, ...
Cached Biology News:Mexico-US collaboration launched to study major human diseases 2'Sleeping Beauty' -- Molecule of the Year 2Gene linked to schizophrenia may reduce cancer risk 2
(Date:12/17/2014)... (PRWEB) December 17, 2014 Gene ... that it has entered into a technology access ... (ADM) to apply DNA2.0’s proprietary protein engineering technology, ... process. , “We are extremely excited that the ... platform. This proprietary bioengineering technology has now ...
(Date:12/17/2014)... SOUTH SAN FRANCISCO, Calif. , Dec. 17, ... positive results of a Phase 2 study evaluating ... for the treatment of patients with severe, chronic ... the current standard of care, including topical steroids ... endpoint was percent change in Visual Analog Scale ...
(Date:12/15/2014)...  GlassesOff Inc. (OTCBB: GLSO) announced today the appointment ... director of the Company,s Board of Directors. ... its CEO until its acquisition by Stanley Black ... Recognized as the inventor of the first Wi-Fi-based Active ... -based RFID solutions focused on improving operational efficiency, safety ...
(Date:12/13/2014)... (PRWEB) December 12, 2014 Clarassance, a ... announced its new name: Therabron Therapeutics , Inc. ... and bronchioles (a type of structure in the lungs ... company’s mission to develop novel protein therapeutics for the ... directors decided to change the name to mark the ...
Breaking Biology Technology:ADM and DNA2.0 Enter Into Protein Engineering Technology Access and Service Agreement 2Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 2Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 3Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 4AeroScout Founder Joins GlassesOff's Board of Directors 2AeroScout Founder Joins GlassesOff's Board of Directors 3Maryland-based Biotech Company's Path Forward in Treating Respiratory Diseases Sparks Name Change 2
... EXTON, Pa., June 2 ViroPharma Incorporated (Nasdaq: ... and chief scientific officer of ViroPharma, will present at the ... ET on Tuesday, June 9, 2009. The conference is ... , , ViroPharma also announced that William Roberts, vice ...
... College Troy campus ... , TROY, Mich., June 2 Walsh College ... to offer a new series of Walsh College,s successful "Take Charge" workshops for ... days, more topics and expanded career content. All are provided at no ...
... 2 Cynosure, Inc. (Nasdaq: CYNO ... aesthetic treatment systems, today announced that President and Chief Executive Officer Michael ... the following investor conferences in New York City this month: , ... Gabelli & Company Healthcare Symposium , Tuesday, June 9; ...
Cached Biology Technology:ViroPharma to Present at Two June Healthcare Conferences 2Walsh College and Ford Motor Company Fund and Community Services Team Up To Offer New Series of 'Take Charge' Workshops for the Unemployed 2Walsh College and Ford Motor Company Fund and Community Services Team Up To Offer New Series of 'Take Charge' Workshops for the Unemployed 3Walsh College and Ford Motor Company Fund and Community Services Team Up To Offer New Series of 'Take Charge' Workshops for the Unemployed 4Cynosure Announces Presentations at Upcoming Investor Conferences 2
... EPS 3501 XL Power Supply, 1. 3500 ... constant current, constant power, and linear voltage ... to focused equilibrium in IPG strips quickly ... compensate for variations in gel thickness, sample ...
...
Request Info...
... ESGRO Complete Derivation Kit is intended ... cells from delayed blastocysts in serum-free ... Clonal Grade ... Blastocyst Incubation Medium Trypsin Solution ...
Biology Products: