Navigation Links
Tipping elements in the Earth's climate system
Date:2/4/2008

rctic sea-ice during summer within a few decades.

Intermediately sensitive tipping elements, large uncertainty:

West Antarctic Ice Sheet - Recent gravity measurements suggest that the ice sheet is losing mass. Since most of the ice sheet is grounded below sea level the intrusion of ocean water could destabilize it. The tipping point could be reached with a local warming of five to eight degrees Celsius in summer. A worst case scenario shows the ice sheet could collapse within 300 years, possibly raising sea level by as much as five meters.

Boreal forest - The northern forests exhibit a complex interplay between tree physiology, permafrost and fire. A global mean warming of three to five degrees Celsius could lead to large-scale dieback of the boreal forests within 50 years. Under climate change the trees would be exposed to increasing water stress and peak summer heat and would be more vulnerable to diseases. Temperate tree species will remain excluded due to frost damage in still very cold winters.

Amazon rainforest - Global warming and deforestation will probably reduce rainfall in the region by up to 30 percent. Lengthening of the dry season, and increases in summer temperatures would make it difficult for the forest to re-establish. Models project dieback of the Amazon rainforest to occur under three to four degrees Celsius global warming within fifty years. Even land-use change alone could potentially bring forest cover to a critical threshold.

El Nio Southern Oscillation (ENSO) The variability of this ocean-atmosphere mode is controlled by the layering of water of different temperatures in the Pacific Ocean and the temperature gradient across the equator. During the globally three degrees Celsius warmer early Pliocene ENSO may have been suppressed in favor of persistent El Nio or La Nia conditions. In response to a warmer stabilized climate, the most realistic models simulate increased El Nio amplitude with
'/>"/>

Contact: Uta Pohlmann
pohlmann@pik-potsdam.de
49-331-288-2507
Potsdam Institute for Climate Impact Research (PIK)
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Ultraconserved elements in the genome: Are they indispensable?
2. Selexis Announces Advanced Approach to Maximize Power of Genetic Elements for Rapid Development of High Performance Cell Lines
3. Worlds largest investor coalition seeks further disclosure on climate change and shareholder value
4. Impoverished areas of Africa and Asia face severe crop losses from climate change in 20 years
5. AGU revises position on climate change
6. Climate change in the Baltic Sea basin -- past, present and future
7. Climate influence on deep sea populations
8. Japanese and German researchers meet to discuss climate change
9. A warming climate can support glacial ice
10. UC San Diego begins trading greenhouse gas credits on Chicago Climate Exchange
11. Immediate action needed to save corals from climate change
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/8/2015)... NEW YORK , July 8, 2015 /PRNewswire/ ... today announced BD & Guidepoint Mentor, a ... access to Guidepoint,s expert network services. ... cutting-edge technologies to improve healthcare delivery and outcomes and, ... each start-up entrepreneur will be able to directly engage ...
(Date:7/8/2015)... SPRINGS, Florida , July 8, 2015 ... constantly evolving as this summer,s must have products such as ... in demand as popularity for biometrics based devices continues to ... are NXT-ID, Inc. (NASDAQ: NXTD ), Google Inc. (NASDAQ: ... Inc. (NYSE: FIT ), GoPro, Inc. (NASDAQ: GPRO ...
(Date:7/7/2015)... , July 7, 2015  Based on its ... & Sullivan recognizes Credence ID, LLC with the ... Company of the Year Award. Credence ID has ... in its mission of offering enrollment and identification ... As Credence ID was formed by experts from ...
Breaking Biology News(10 mins):BD and Guidepoint Team to Connect Healthcare Start-up Companies With Business and Scientific Experts 2BD and Guidepoint Team to Connect Healthcare Start-up Companies With Business and Scientific Experts 3Consumers Flock to This Summer's Must Have Tech Gadgets as Latest Digital Wallets, Smart Technology & Wearable Products Continue to Grow in Popularity & Functionality 2Consumers Flock to This Summer's Must Have Tech Gadgets as Latest Digital Wallets, Smart Technology & Wearable Products Continue to Grow in Popularity & Functionality 3Consumers Flock to This Summer's Must Have Tech Gadgets as Latest Digital Wallets, Smart Technology & Wearable Products Continue to Grow in Popularity & Functionality 4Consumers Flock to This Summer's Must Have Tech Gadgets as Latest Digital Wallets, Smart Technology & Wearable Products Continue to Grow in Popularity & Functionality 5Consumers Flock to This Summer's Must Have Tech Gadgets as Latest Digital Wallets, Smart Technology & Wearable Products Continue to Grow in Popularity & Functionality 6Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 2Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 3Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 4Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 5
... Special Surgery researchers have found that statins may be ... from pregnancy complications caused by antiphospholipid syndrome (APS), according ... the body produces antibodies directed at phospholipids, the main ... study published in the October issue of the ...
... from the Herman B Wells Center for Pediatric Research at ... family of blood proteins that they hope holds a ... and adults. Their findings may one day help ... and other cancers of the blood. The researchers, led ...
... have created nanowire sensors coupled with simple microprocessor electronics ... used for point-of-care (POC) disease detection, according to a ... use activation of immune cells by highly specific antigens ... as the detector. When T cells are activated, they ...
Cached Biology News:Statins may prevent miscarriages 2Statins may prevent miscarriages 3On the trail of a targeted therapy for blood cancers 2Sensitive nanowire disease detectors made by Yale scientists 2
(Date:7/30/2015)... ... ... its 2015 growth plan and as a follow up to the recently announced expansion of ... pleased to announce that it has begun construction on a new Microbiological Laboratory. The new ... dedicated to basic USP 51, USP 61, and USP 62 testing specific to raw materials. ...
(Date:7/29/2015)... PARIS , July 30, 2015 ... de la santé, publie ses résultats pour le ... Brandicourt commente les résultats. Visionner ... http://www.eurobusinessmedia.com/ceo-direct/sanofi/sanofi-h1-2015-results-interview-with-ceo-olivier-brandicourt?utm_source=ceo-direct&utm_medium=wire Au sommaire ... - Moteurs de croissance ...
(Date:7/29/2015)... Japan (Q2 2015: +14% CER / 20% of sales) led ... China , as well as solid contributions from Korea, ... / Middle East / Africa ... Germany , Turkey and the ... of sales) grew 11%, excluding U.S. HPV sales, on demand across all customer ...
(Date:7/29/2015)... FRANCISCO , July 29, 2015  AsureQuality ... mobile molecular testing for applications in food and ... hand-held, battery powered real-time PCR device, the Freedom4. ... farm right through to the supermarket shelf for ... This includes involvement in animal disease control and ...
Breaking Biology Technology:Whitehouse Labs Formally Announces Plans to Open a Microbiological Laboratory 2QIAGEN Reports Results for Second Quarter and First Half of 2015 2QIAGEN Reports Results for Second Quarter and First Half of 2015 3QIAGEN Reports Results for Second Quarter and First Half of 2015 4QIAGEN Reports Results for Second Quarter and First Half of 2015 5QIAGEN Reports Results for Second Quarter and First Half of 2015 6QIAGEN Reports Results for Second Quarter and First Half of 2015 7QIAGEN Reports Results for Second Quarter and First Half of 2015 8QIAGEN Reports Results for Second Quarter and First Half of 2015 9QIAGEN Reports Results for Second Quarter and First Half of 2015 10AsureQuality and Ubiquitome Partner on Applications for Mobile Molecular Food Safety Testing 2
... - The Madison-based Imago Scientific Instruments has ... State University's College of Engineering for use in ... Analysis. , ,The lab will be the primary research ... led by Balaji Narasimhan, an associate professor of chemical ...
... Wisconsin's economy evolves, regional collaboration is key to the ... companies that do business here. , ,Our state boasts ... capital, but alone we lack the critical mass needed ... East and West Coasts - for the resources so ...
... CDW Corp. , the Illinois-based technology provider that recently ... top salesman to handle Berbee's transition into the company. ... sales Steven Schuldt in charge of merging Berbee, a ... in Vernon Hills, Ill., acquired the privately-held Berbee on ...
Cached Biology Technology:Regional collaboration is key to state's future 2Regional collaboration is key to state's future 3
MAb to IgG2 (Fc gamma-2) IgG2 (Fc, gamma-2 epitope)...
... This CLS number is a ... easily match Cornings product number. ... please order under the old ... customer service for assistance. ...
Gel Loading Buffer contains a precipitant to ensure that the samples sink into the wells and a tracking dye to allow the user to follow the progress of electrophoresis....
... solution, Type I is ... and agarose gel electrophoresis ... offers the advantage of ... blue and xylene cyanole). ...
Biology Products: