Navigation Links
DNA Sample Suggests Greenland was Much Warmer During Last Ice Age

Ancient DNA samples recovered from the bottom of a two-kilometre thick ice sheet in Greenland has shown that the island was much warmer at some point during the last Ice Age than previously believed .

The DNA came from the trees, plants and insects of a boreal forest estimated to be between 450,000 and 900,000 years old. Previously, the youngest evidence of a boreal forest in Greenland was from 2.4 million years ago.

'These findings allow us to make a more accurate environmental reconstruction of the time period from which these samples were taken, and what we've learned is that this part of the world was significantly warmer than most people thought,' said Martin Sharp, a glaciologist at the University of Alberta and a co-author of the paper appearing in the journal Science.

Sharp said the sample suggested that the temperature of the southern Greenland boreal forests 450,000 to 900,000 years ago was probably between 10C in summer and -17C in winter.

The reduced glacier cover in that region also meant the global ocean was probably between one and two metres higher during that time compared to current levels, he said. Harp said the silty ice found underneath the huge Greenland glacier created a perfect, natural 'freezer' to preserve the prehistoric DNA.

Scientists have, in the past, found older organic matter, but they have not found any uncontaminated DNA that is as old or older than the Greenland samples.


'"/>




Page: 1

Related medicine news :

1. Screening Of Blood Samples For Viruses
2. China Unwilling To Share Bird Flu Samples, says WHO
3. First Suspected Bird Flu Case In Serbia: Samples Sent For Analysis
4. Veterinary Pathologist in the Indian Biosecurity Labs Work under Pressure to Efficiently Handle Bird Flu Samples
5. Cancer `Tumour Bank With 7,000 Samples To Be Made Available For Research
6. Bird Flu Sample Tests Positive In Madhya Pradesh
7. Vet Dies Of Suspected Bird Flu, Samples Sent To NIV
8. Chicken Samples Test Negative For Bird Flu In Chattisgarh
9. Apollo’s about-Turn: Cocktail Of Drugs Found In Rahul Sample
10. Tamil Nadu Air Samples Among The Most Polluted In The Country
11. Orissa to Send Coke, Pepsi Samples for Testing
Post Your Comments:
(Date:12/2/2008)..., Xena Health and Solutio...al Claims Service "Claims in a Cloud" as...asgow and London (PRWEB) December 2, 2008 -- Makin...ks to the launch of the first phase of a "C...) solution from Corporate Modelling partners Xena...
(Date:12/2/2008)..., For many families, the ...xpert Esther Koch provides insight into how caregi...iday season to the elder care experience. , ...2, 2008 -- For many families the stress of the hol...Gerontologist and elder care expert Esther Koch ,...
(Date:12/2/2008)..., Soar Unafraid: Learning... Finalist National Best Book 2008 Awards.,In 1977...lowing year she was diagnosed with multiple sclero... Rockies, living life at ninety miles an hour. , ...December 2, 2008 -- Soar Unafraid: Learning to Tru...
(Date:12/1/2008)... SOUTH BEND, Ind., Dec. 2 Patient ...ilities are on the rise according to a new report,...tient Pulse Report: Patient,Perspectives on Ameri...,facilities as a driver for improvement in patient...re than 2 million patients treated at more than,1...
Breaking Medicine News(10 mins):Health News:Corporate Modelling Partners Start Selling BPM in Cloud Service 2Health News:Holidays with Aging Parents: Elder Care Expert Has the Prescription for Caregiver Stress 2Health News:Holidays with Aging Parents: Elder Care Expert Has the Prescription for Caregiver Stress 3Health News:Nothing Has Stopped This Woman--MS, Divorce, Abuse, Trauma--How to Live Adventurously and Fearlessly No Matter What Happens 2Health News:Nothing Has Stopped This Woman--MS, Divorce, Abuse, Trauma--How to Live Adventurously and Fearlessly No Matter What Happens 3Health News:Outpatient Service Facilities Face Increasing Competition - Patient Perceptions More Important Than Ever 2
...t clamped right after birth, thus allowing the blo...s late clamping, was replaced by early clamping, t...ant is expelled. However, this new practice lacks ...ent studies on the importance of when clamping sho...
...l Toxicology Program (NTP), has produced strong ev...hromium (chromium 6) causes cancer when it is con...pounds are often used in electroplating, leather t...ave been found in some drinking water sources. ...
...usiasts and experts in the capital are strongly op...ting to recent reports of yet another application ...eel that the very idea of patenting knowledge like... "Patenting of any kind is highly unjustified and...
...r due to the failure to prevent blood clots known ... say experts in this weeks BMJ. Their warning fol... issue last month by the National Institute for He...ch are also summarised in this weeks journal. <...
Other Medicine News:Health News:Late Clamping of Umbilical Cord may Reduce Anemia in Children 2Health News:Late Clamping of Umbilical Cord may Reduce Anemia in Children 3Health News:Yoga Enthusiasts Oppose Patenting Yoga Overseas 2Health News:25,000 Needless Deaths Each Year Due to Failure to Tackle Blood Clots in Hospital 2
(Date:12/1/2008)...ec. 1 GeoVax Labs, Inc.,...echnology company developing,human vaccines for d...rus) and,other infectious agents, announced today...ials will take place in twelve sites across North ...collaboration with The National Institutes of,Hea...
(Date:11/28/2008)...IS, Nov. 28 Eli Lilly an...mental New Drug Application (sNDA) from,the U.S. ... (duloxetine HCl),for the management of chronic p...he first half of 2009, adding data from a recently...is pain of the knee. , The decision does no...
(Date:11/25/2008)...areness can improve recovery , , Audio and ...ailable on the Mayo Clinic News Blog. Please see t..., ROCHESTER, Minn., Nov. 25 /PRNewswire-USNewsw...roke patients don,t think they,re having a stroke ...l their condition worsens. The findings appear in ...
(Date:11/25/2008)... Calif., Nov. 25 Pharmac...at the company has completed a Phase 1,clinical t...-class,small-molecule Factor VIIa inhibitor. The ...teers to evaluate the safety and pharmacologic eff...27483 resulted in a linear dose,response in the I...
Breaking Medicine Technology:GeoVax's Phase 2a HIV/AIDS Vaccine Human Trials to Begin in North and South America 2GeoVax's Phase 2a HIV/AIDS Vaccine Human Trials to Begin in North and South America 3Lilly Withdraws Application for Additional U.S. Indication for Cymbalta(R) for Chronic Pain 2Lilly Withdraws Application for Additional U.S. Indication for Cymbalta(R) for Chronic Pain 3Lilly Withdraws Application for Additional U.S. Indication for Cymbalta(R) for Chronic Pain 4Do You Know You're Having a Stroke? 2Do You Know You're Having a Stroke? 3Pharmacyclics Announces Completion of Phase 1 Clinical Trial of Factor VIIa Inhibitor PCI-27483 2Pharmacyclics Announces Completion of Phase 1 Clinical Trial of Factor VIIa Inhibitor PCI-27483 3Pharmacyclics Announces Completion of Phase 1 Clinical Trial of Factor VIIa Inhibitor PCI-27483 4FairWarning to Host Webinar Featuring HIMSS Chairman and Healthcare Executive from PricewaterhouseCoopers on Electronic Health Record Privacy and Comp 11766 1FairWarning to Host Webinar Featuring HIMSS Chairman and Healthcare Executive from PricewaterhouseCoopers on Electronic Health Record Privacy and Comp 11766 2The Brand Experience Teams With World Vision to Launch Experience 3A AIDS Multi Media Exhibit 11763 1The Brand Experience Teams With World Vision to Launch Experience 3A AIDS Multi Media Exhibit 11763 2The Brand Experience Teams With World Vision to Launch Experience 3A AIDS Multi Media Exhibit 11763 3Bioniche Provides Update on Refractory Bladder Cancer Trial with Urocidin 28TM 29 11760 1Bioniche Provides Update on Refractory Bladder Cancer Trial with Urocidin 28TM 29 11760 2Bioniche Provides Update on Refractory Bladder Cancer Trial with Urocidin 28TM 29 11760 3AAFPRS Speaks to the Safety of BOTOX 28R 29 Cosmetic 11759 1AAFPRS Speaks to the Safety of BOTOX 28R 29 Cosmetic 11759 2
...geting Pro-Inflammatory,Protein -, GAITHERSBURG, M...mune, Inc. today announced the publication of prec...obility group box,protein-1 (HMGB1), a nuclear DNA...oimmune diseases such as systemic lupus,erythemato...to be,published in the May 2007 issue of Nature Im...
...wire-FirstCall/ --,VioQuest Pharmaceuticals, Inc. ...used on acquiring, developing and,commercializing ...,preclinical studies of VQD- 002, a direct inhibit...d hematologic tumors.,Pre-clinical data was presen...f the American Association for Cancer Research,(AA...
Other Medicine Technology:MedImmune Publishes New Data in Nature Immunology Demonstrating The,Role HMGB1 May Play in Systemic Autoimmune Diseases 2MedImmune Publishes New Data in Nature Immunology Demonstrating The,Role HMGB1 May Play in Systemic Autoimmune Diseases 3VioQuest Pharmaceuticals Announces Data Presentation for Its Akt,Inhibitor VQD-002, at American Association for Cancer Research,Annual Meeting 2VioQuest Pharmaceuticals Announces Data Presentation for Its Akt,Inhibitor VQD-002, at American Association for Cancer Research,Annual Meeting 3VioQuest Pharmaceuticals Announces Data Presentation for Its Akt,Inhibitor VQD-002, at American Association for Cancer Research,Annual Meeting 4VioQuest Pharmaceuticals Announces Data Presentation for Its Akt,Inhibitor VQD-002, at American Association for Cancer Research,Annual Meeting 5
...atory and a worldwide leader in innovative laborat...sive test menu of highly complex and unique medica...by the University of Utah, ARUP Laboratories' clie...ity teaching hospitals and children's hospitals, m...
...atory and a worldwide leader in innovative laborat...sive test menu of highly complex and unique medica...by the University of Utah, ARUP Laboratories' clie...ity teaching hospitals and children's hospitals, m...
...atory and a worldwide leader in innovative laborat...sive test menu of highly complex and unique medica...by the University of Utah, ARUP Laboratories' clie...ity teaching hospitals and children's hospitals, m...
...atory and a worldwide leader in innovative laborat...sive test menu of highly complex and unique medica...by the University of Utah, ARUP Laboratories' clie...ity teaching hospitals and children's hospitals, m...
Medicine Products: