HOME >> BIOLOGY >> NEWS
Climate changes are linked between Greenland and the Antarctic

The result:
Even if climate records from Greenland and Antarctic ice cores look different, climate of Artic and Antarctic are directly linked. Investigations of an Antarctic ice core indicate a principle connection between both hemispheres by a 'bipolar seesaw'. Even shorter and weaker temperature changes in the south are connected to fast changes in temperature in the north by change of ocean currents in the Atlantic ocean. Antarctica always warmed in the time period 10,000 to 55,000 years BP whilst the North remained cold. Concurrently, warm water export from the Southern Ocean to the North Atlantic was reduced. In contrast, the Antarctic started to cool every time more warm water started to flow into the North Atlantic during warm events in the north. This result suggests a general link between long-term climate changes in both hemispheres via this Bipolar Seesaw as a result of Atlantic Meridional Overturning Circulation changes. The Atlantic circulation is an important issue in the global warming debate, as icecap melt water can weaken the Atlantic currents.

The research project:
In the current issue of Nature, a joint effort of scientists from 10 European nations working together in the European Project for Ice Coring in Antarctica (EPICA) established a precise link between climate records from Greenland and Antarctica using data on global changes in methane concentrations derived from trapped air bubbles in the ice. The Antarctic ice core analyses were performed on the new EDML (EPICA Dronning Maude Land) ice core, which due to its higher snow accumulation rate allows for reconstruction of higher resolution atmospheric and climate records than previous ice cores from the East Antarctic plateau; a prerequisite for precise synchronisation with the Greenland counterpart. The Greenland ice core analyses were performed on the North Greenland Ice core Project (NGRIP). Based on the new synchronized time scale the scientists were able to c
'"/>

Contact: Anne Dorte Bach
adba@adm.ku.dk
453-532-4263
University of Copenhagen
9-Nov-2006


Page: 1 2

Related biology news :

1. Climate change isolates Rocky Mountain butterflies
2. Climate change and permafrost thaw alter greenhouse gas emissions in northern wetlands
3. Climate change reduces Queenslands bat numbers
4. Climate change signal detected in the Indian Ocean
5. Climate change threatens wild relatives of key crops
6. Climate policy: Its good to be in the RED
7. Climate change impacts stream life
8. Climate change a threat to Indonesian agriculture, study says
9. Climate change could trigger boom and bust population cycles leading to extinction
10. Climate changes brews trouble for marine life in European Seas, Marine Board-ESF report says
11. Granthams to fund Institute for Climate Change at Imperial College London

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:7/18/2020)... ... July 16, 2020 , ... A ... of the Invictus Medical Neoasis™ active noise control device to attenuate typical noises ... the Neoasis™ device attenuated the alarm sounds from patient monitors, ventilators and other ...
(Date:7/4/2020)... ... July 03, 2020 , ... Aesthetics Biomedical (ABM), a ... awards for not only the products and treatments developed, but also the dedicated ... RF. All the brands built by ABM have received several honors already for ...
(Date:7/1/2020)... ... July 01, 2020 , ... Cure Glioblastoma, a ... most common and aggressive adult brain cancer—announced today the appointments of its first ... charged with supporting the organization’s initiatives and overall vision. , "Senior Fellows are ...
Breaking Biology News(10 mins):
(Date:8/12/2020)... (PRWEB) , ... August 12, 2020 , ... ... Inc. (EMMA International), a global leader in FDA compliance consulting has been ... nation’s fastest-growing private companies. The list represents a unique look at the most ...
(Date:7/31/2020)... ... ... R3 Stem Cell International is now offering patients the opportunity to receive ... patients may choose which extremities they would like treated. , Several studies have shown ... At R3 International, umbilical cord tissue is obtained from a lab with a long ...
(Date:7/31/2020)... (PRWEB) , ... July 29, 2020 , ... ... and Catalent, the leading global provider of advanced delivery technologies, development, and manufacturing ... announced that they have entered into a strategic partnership whereby Catalent will provide ...
(Date:7/22/2020)... ... July 22, 2020 , ... Join experts from Reed Tech ... Regulatory Solutions, in a one hour live webinar on Thursday, August 13, ... China for drugs and medical devices. Specifically, for medical devices, the NMPA has departments ...
Breaking Biology Technology:
Cached News: