Navigation Links
Do dust particles curb climate change?
Date:10/6/2009

nsequently, the cloud cover over the earth's surface increases. Because clouds reflect the solar radiation and throw it back into space, less heat collects in the atmosphere than when the sky is clear. Climate researchers refer to this mechanism as the "cloud lifetime effect".

To date, however, it has not been possible to quantify the influence of the cloud lifetime effect on climate. The estimates vary hugely and range from no influence whatsoever to a cooling effect that is sufficient to more than compensate for the heating effect of carbon dioxide.

According to Bjorn Stevens from the MPI-M and Graham Feingold from the Earth System Research Laboratory at NOAA in Washington D.C the enormous uncertainty surrounding this phenomenon is indicative of the fact that the explanation of the cooling mechanism generated by aerosols is oversimplified. The two cloud researchers have analyzed the specialist literature published on this topic since the 1970s. In their survey of the literature they encountered observations that disagree with the cloud lifetime effect: for example, a field study carried out a few years ago found that clouds in the Trade Wind region rain out more quickly rather than more slowly in the presence of virtually opaque aerosols.

On the completion of their analysis of the literature, Stevens and Feingold came to the following conclusion: "Clouds react to aerosols in a very complex way and the reaction is strongly dependent on the type and state of the cloud," says Stevens. Therefore the aerosol problem is a cloud problem. "We climate researchers must focus more on cloud systems and understand them better," he stresses.

As the researchers write, processes in the clouds that counteract or even negate the influence of the aerosol particles have not been taken into account up to now. One example: when a cumulus cloud comes into contact with aerosols, it does not rain out. However, this has certain consequences: the fluid ri
'/>"/>

Contact: Dr. Annette Kirk
annette.kirk@zmaw.de
49-404-117-3374
Max-Planck-Gesellschaft
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Novel 3-D cell culture model shows selective tumor uptake of nanoparticles
2. Worldwide atmospheric measurements will determine the role of atmospheric fine particles
3. MIT: Remote-control nanoparticles deliver drugs directly into tumors
4. MIT sculpts 3-D particles with light
5. Tiny dust particles from Asian deserts common over western United States
6. Mesothelin engineered on virus-like particles provides treatment clues for pancreatic cancer
7. Researchers mimic bacteria to produce magnetic nanoparticles
8. Environmental fate of nanoparticles depends on properties of water carrying them
9. Nanoparticles assemble by millions to encase oil drops
10. New ORNL process brings nanoparticles into focus
11. $2M grant awarded to University of Kentucky for research on nanoparticles and human health
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Do dust particles curb climate change?
(Date:8/24/2015)... 2015 The consulting company Frost & ... manufacturer DERMALOG and its customized solutions and products for ... of the Year Award". DERMALOG is particularly successful with a ... -Cross reference: Picture is available at AP Images ... On Thursday evening, in South Africa,s ...
(Date:8/20/2015)... NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" ... the growing mobile commerce market and creator of the ... Card Alliance and the EMV Migration Forum.  ... Card Alliance Latin America (SCALA) Chapter provides NXT-ID, Inc. ... leaders promoting adoption of smart card technology. ...
(Date:8/17/2015)... OXFORD, Conn. , Aug. 17, 2015  NXT-ID, ... a biometric authentication company focused on the growing mobile ... announces its new sales campaign for Q4 2015. The ... winning marketing team consisting of Amplitude Marketing Group ( ... Amplitude Marketing Group is a leader in retail driven ...
Breaking Biology News(10 mins):Frost & Sullivan Honors DERMALOG with Biometrics Prize for Achievements in Africa 2Frost & Sullivan Honors DERMALOG with Biometrics Prize for Achievements in Africa 3NXT-ID, Inc. Joins Smart Card Alliance and EMV Migration Forum 2NXT-ID, Inc. Joins Smart Card Alliance and EMV Migration Forum 3NXT-ID, Inc. Joins Smart Card Alliance and EMV Migration Forum 4NXT-ID, Inc. Launches Sales Campaign for Wocket Smart Wallet with Award Winning Marketing Team 2NXT-ID, Inc. Launches Sales Campaign for Wocket Smart Wallet with Award Winning Marketing Team 3
... fond of talking about it as are politicians, economists ... The problem is that the term sustainability can refer ... at the Technische Universitaet Muenchen have shed light on ... science they have managed to give the term "sustainability" ...
... School of Medicine found that women may have a slightly higher ... acute coronary syndrome (ACS), but that these differences appear to be ... study, published in the August 26, 2009 issue of the ... however that overall there was no significant difference in mortality observed ...
... use wireless sensors, which can monitor chemical processes or ... wireless network. Still, many facilities that could benefit ... use a wired network instead, because the reliability, speed ... do not meet their needs. The U.S. ...
Cached Biology News:New tools for sustainable farming 2New tools for sustainable farming 3Study finds women slightly more likely to die than men in the 30 days following a heart attack 2SRNL, automakers to develop high-performance wireless sensors networks 2SRNL, automakers to develop high-performance wireless sensors networks 3
(Date:8/26/2015)... 26, 2015  Platform therapeutic company Symic Biomedical, ... a $1.5M Phase II SBIR grant from the ... its therapeutic agent to reduce arteriovenous fistula (AVF) ... stage renal disease (ESRD) patients undergoing hemodialysis. The ... Diabetes and Digestive and Kidney Diseases (NIDDK), will ...
(Date:8/26/2015)... BEIJING , August 26, 2015 Israel ... DiaCardio wins 1 st place  Wayerz comes ... in Israel by venture capital fund JVP, ... including the US, China , Israel ... America .  Impressive achievement for the Israeli representatives ...
(Date:8/26/2015)... 26, 2015 After litigating and negotiating ... relating to P2i United States patent ... in the United States without any ... of either party. As a result of the parties, settlement, ... California dismissed the case without prejudice. ...
(Date:8/26/2015)... ... August 26, 2015 , ... PRC Clinical, a Clinical Trial ... with local sponsors in southern California. The Clinical Trial Management Expert CRO seeks to ... regulatory pathways., , Stem Cell Meeting on the Mesa ...
Breaking Biology Technology:Symic Biomedical Awarded $1.5MM NIH Phase II SBIR Grant to Develop its Proteoglycan Mimetic Therapeutics to Reduce Vascular Access Failures in ESRD 2Symic Biomedical Awarded $1.5MM NIH Phase II SBIR Grant to Develop its Proteoglycan Mimetic Therapeutics to Reduce Vascular Access Failures in ESRD 3Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 2Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 3Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 4Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 5Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 6P2i Settles United States Litigation 2PRC Clinical To Attend Major Industry Conferences And Meet Sponsor Companies In The San Diego Biotech Hub 2PRC Clinical To Attend Major Industry Conferences And Meet Sponsor Companies In The San Diego Biotech Hub 3
... In an address to,shareholders at the company,s ... ) Chairman and CEO David B. Snow Jr. ... designed to deliver strong,continuing earnings growth through 2008 ... specialty pharmacy to retaining and winning,customers, and advanced ...
... May 22 /PRNewswire-FirstCall/ - In accordance with the,terms ... Inc.,"Atrium" (TSX: ATB) today announced that it has ... Chemicals division for total proceeds of,US$166.4 million in ... is now a health and nutrition pure-play and ...
... CT Injection System Technology Detects Extravasations during CT ... ... MEDRAD, INC., announced today,that its XDS(TM) Extravasation Detector has ... a technology that aids in the,detection of leaking intravenous contrast ...
Cached Biology Technology:Medco CEO to Shareholders: Delivering Results, Driving Shareholder Value 2Medco CEO to Shareholders: Delivering Results, Driving Shareholder Value 3Medco CEO to Shareholders: Delivering Results, Driving Shareholder Value 4MEDRAD(R) XDS(TM) Extravasation Detector Wins Medical Design Excellence Award 2MEDRAD(R) XDS(TM) Extravasation Detector Wins Medical Design Excellence Award 3
...
2ndGen Predilute antibody for staining tissue sections. Optimized for use with Zymeds Histostain-PLUS, NBA, HistoST5050, and Cap-Plus IHC Kits.Labeling: ASR...
... degradation of single-stranded DNA and RNA endonucleolytically ... nuclease prefers ssDNA over dsDNA by 30,000-fold, ... double-stranded DNA from both ends (1,2). Mung ... mapping studies (3,4), for flushing staggered ends ...
Endomorphin-2. Cross reactivity: Endomorphin-1 3%, Met-enkephalin <0.03%, Leu-enkephalin <0.01% and beta-Endorphin <0.01%....
Biology Products: