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:
*Name:
*Comment:
*Email:


(Date:10/13/2017)... ... 13, 2017 , ... Lori R. Somekh, founder of the Law Office ... of elder law and special needs planning attorneys. “Membership in ElderCounsel helps our office ... forum to network with elder law attorneys nationwide,” said Somekh. , ElderCounsel ...
(Date:10/13/2017)... NY (PRWEB) , ... October 13, 2017 , ... Ellevate ... people in business to advocate for action towards gender equality at their inaugural Summit ... from around the globe, and reached a social audience of over 3 million. To ...
(Date:10/13/2017)... ... October 13, 2017 , ... ... Software Development, has been awarded a contract by the Center for Medicare and ... aims to accelerate the enterprise use of Agile methodologies in a consistent and ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... sleep apnea using cutting-edge Oventus O2Vent technology. As many as 18 ... characterized by frequent cessation in breathing. Oral appliances can offer significant relief to ...
(Date:10/12/2017)... , ... October 12, 2017 , ... The American College ... to Carol Friedman, PhD, FACMI, during the Opening Session of AMIA’s Annual Symposium in ... , In honor of Morris F. Collen, a pioneer in the field of medical ...
Breaking Medicine News(10 mins):
(Date:10/5/2017)... 5, 2017  In response to the nationwide ... Maxillofacial Surgeons (AAOMS) released prescribing recommendations that urge ... used as a first-line therapy to manage a ... Recognizing the value and importance ... "Opioid Prescribing: Acute and Postoperative Pain Management" stresses ...
(Date:10/4/2017)... OBP Medical , a leading ... today announced regulatory approval from Brazil,s ... Nacional de Vigilância Sanitária (ANVISA)) to market ... with integrated LED light source and smoke evacuation ... of a tissue pocket or cavity during surgical ...
(Date:10/2/2017)... 2, 2017  AllianceRx Walgreens Prime, the combined central ... and pharmacy benefit manager Prime Therapeutics LLC (Prime), today ... included the unveiling of new signage at its headquarters ... as at a few other company-owned facilities across the ... patients, some of whom will begin to see the ...
Breaking Medicine Technology: