Navigation Links
The water cycle amplifies abrupt climate change
Date:1/19/2014

The role of the hydrological cycle during abrupt temperature changes is of prime importance for the actual impact of climate change on the continents. In a new study published in Nature Geoscience online (January 19, 2014) scientists from the University of Potsdam, Germany and the GFZ German Research Centre for Geosciences show that during the abrupt cooling at the onset of the so-called Younger Dryas period 12680 years ago changes in the water cycle were the main drivers of widespread environmental change in western Europe. The team of scientists analyzed organic remains extracted from Meerfelder maar lake sediments from the Eifel region, western Germany, to reconstruct changes in precipitation patterns in unprecedented detail. They were able to show that the intrusion of dry polar air into western Europe lead to the collapse of local ecosystems and resulted in the observed widespread environmental changes at that time.

Organic remains of plants from lake sediments as molecular rain gauges

The exact sequence of events during abrupt climate changes occurring over only a few years is one of the great unknowns in paleoclimate research. The new results presented here were obtained by using a novel method, where molecular organic remains derived from plant fossils were extracted from precisely dated annually laminated lake sediments. The ratio of the heavy Deuterium to the light Hydrogen isotopes in these biomarkers can be used to reconstruct changes in precipitation regime and moisture sources with unprecedented detail.

The Younger Dryas period was the last major cold period at the end of the last glaciation with a duration of about 1100 years, when an abrupt change in the pathway of westerly wind systems over Europe lead to massive environmental change within a few years, as GFZ scientists showed in an earlier study. Dirk Sachse, the head of the workgroup at the Institute of Earth and Environmental Sciences of the Potsdam Univer
'/>"/>

Contact: F.Ossing
ossing@gfz-potsdam.de
49-331-288-1040
GFZ GeoForschungsZentrum Potsdam, Helmholtz Centre
Source:Eurekalert

Page: 1 2

Related biology news :

1. Waterfowl poisoning halved by lead shot prohibition
2. Coral reefs in Palau surprisingly resistant to naturally acidified waters
3. An improved, cost-effective catalyst for water-splitting devices
4. MBL scientists to study coastal waterbird habitats through funding for Obamas Climate Action Plan
5. To curb Chinas haze and air pollution, use water
6. Deepwater Horizon NRDA study shows possible oil impact on dolphins
7. American Chemical Society podcast: Detecting radioactive material in nuclear waste water
8. SOFS take to water
9. Ultrafast heating of water -- This pot boils faster than you can watch it
10. Where water is limited, researchers determine how much water is enough
11. New study highlights key role soil structure plays in water uptake by crops
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/19/2014)... India over the last 30 years contributed only ... during that time, according to a new study ... ., "Energy access is fundamental to development: it ... education, communication, and health," says IIASA researcher Shonali ... energy access is widely agreed to be an ...
(Date:10/18/2014)... undiagnosed, suspected genetic conditions, a certain type of exome ... yield than traditional molecular diagnostic methods, according to a ... being released to coincide with the American Society of ... the protein­coding region of the genome (the complete set ... or organism), has been rapidly applied in research settings ...
(Date:10/17/2014)... University of Copenhagen have shown for the first time ... Cystic fibrosis patients, giving them the opportunity to get ... infections. , The study also discovered the bacterial growth ... was halted or slowed down by the immune cells. ... oxygen and helped "suffocate" the bacteria, forcing the bacteria ...
Breaking Biology News(10 mins):Improved electricity access has little impact on climate change 2Study examines type of exome sequencing and molecular diagnostic yield 2Study examines type of exome sequencing and molecular diagnostic yield 3Scientists opens black box on bacterial growth in cystic fibrosis lung infection 2
... This release is available in Spanish . ... ozone levels above 50 parts per billion (ppb) along the ... costing more than $1 billion in lost crop production, according ... a 5-year study led by the National Aeronautics and Space ...
... ITHACA, N.Y. Losing weight without a grumbling stomach or ... lighter lunch, finds a new Cornell University study to be ... . Participants who ate portion-controlled lunches did not compensate ... to believe the human body does not possess the mechanisms ...
... higher-protein, lower-carbohydrate energy-restricted diet has a major positive impact ... muscle, particularly when the proteins come from dairy products. ... the Journal of Nutrition, compared three groups ... Each consumed either low, medium or high amounts ...
Cached Biology News:Monitoring ground-level ozone from space 2Foods rich in protein, dairy products help dieters preserve muscle and lose belly fat: study 2
(Date:10/20/2014)... Inc. (TSXV: BRM) ("Biorem" or "the Company") today announced four new ... and provides a good start to Q4.  The orders are for ... and one in the Middle East . ... Peter Bruijns , President & CEO. "Total bidding activity and ... have been for any complete year since the company has tracked ...
(Date:10/20/2014)... 2014 OncLive® is ... Center at Thomas Jefferson University has joined its ... Strategic Alliance Partnership program, the Sidney Kimmel Cancer ... raise awareness of the Center’s cutting-edge research programs, ... Clinicians and other health care professionals from the ...
(Date:10/19/2014)... OCTOBER 20-22, 2014: The 9th Annual ... take place at the Congress Center Basel, ... now available at http://www.abim.ch . ... from all over the globe will exchange ... products and developments on the world market. ...
(Date:10/19/2014)... October 19, 2014 The Asia-Pacific Speech ... market in Asia-Pacific with analysis and forecast of revenue. ... in 2014 to $208 million by 2019, at a ... to 2019. , Browse through the TOC of the ... of the in-depth analysis provided. It also provides a ...
Breaking Biology Technology:Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 2Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 3The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 2The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 3The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 4
... and ALACHUA, Fla., Sept. 4 ,Zimmer Holdings, Inc. ... in the orthopaedics,industry, and Tutogen Medical, Inc., a ... human (allograft) and animal,(xenograft) tissue, today announced the ... wholly owned subsidiary of Zimmer Holdings,Inc., into Europe, ...
... Ind., Sept. 4 ,Tutogen Medical, Inc. (Amex: ... products made from human (allograft) and animal,(xenograft) tissue, ... a leader,in the orthopaedics industry, today announced the ... wholly owned subsidiary of Zimmer,Holdings, Inc., into Europe, ...
... to Present at BioCentury,s Newsmakers in the Biotech,Industry, Bank of America ... ... Conferences, SEATTLE, Sept. 4 Trubion Pharmaceuticals,Inc. ... executive officer, and chairman of Trubion, will present an overview,of the ...
Cached Biology Technology:Zimmer and Tutogen Announce Agreement for International Distribution of Biological Products 2Zimmer and Tutogen Announce Agreement for International Distribution of Biological Products 3Zimmer and Tutogen Announce Agreement for International Distribution of Biological Products 4Zimmer and Tutogen Announce Agreement for International Distribution of Biological Products 5Tutogen Medical, Inc. and Zimmer Holdings, Inc. Announce Agreement for International Distribution of Biological Products 2Tutogen Medical, Inc. and Zimmer Holdings, Inc. Announce Agreement for International Distribution of Biological Products 3Tutogen Medical, Inc. and Zimmer Holdings, Inc. Announce Agreement for International Distribution of Biological Products 4Tutogen Medical, Inc. and Zimmer Holdings, Inc. Announce Agreement for International Distribution of Biological Products 5Trubion Pharmaceuticals to Present at Upcoming Investor Conferences 2
... a tetramethylrhodamine-conjugated jetSI-ENDO (excitation at ... nm), the powerful siRNA transfection ... to determine the transfection efficiency ... and trafficking of siRNAs. More ...
... movement counts, similar to an infrared beam break ... subjects at once, in two frames of reference, ... experimental group at once, and allow social interaction ... a variety of other spatial behavior situations, including ...
... a score of movement counts, similar to an ... up to 6 subjects at once, in two ... Can outpt a sync pulse to coordinate with ... animal location and timing information to control arena ...
... features of Tracker, plus software to note when ... of the arena, and trigger a penaltyThe Spatial ... built around a video camera, frame grabber, and ... fields at once and up to 6 moving ...
Biology Products: