Navigation Links
Black carbon a significant factor in melting of Himalayan glaciers
Date:2/3/2010

The fact that glaciers in the Himalayan mountains are thinning is not disputed. However, few researchers have attempted to rigorously examine and quantify the causes. Lawrence Berkeley National Laboratory scientist Surabi Menon set out to isolate the impacts of the most commonly blamed culpritgreenhouse gases, such as carbon dioxidefrom other particles in the air that may be causing the melting. Menon and her collaborators found that airborne black carbon aerosols, or soot, from India is a major contributor to the decline in snow and ice cover on the glaciers.

"Our simulations showed greenhouse gases alone are not nearly enough to be responsible for the snow melt," says Menon, a physicist and staff scientist in Berkeley Lab's Environmental Energy Technologies Division. "Most of the change in snow and ice coverabout 90 percentis from aerosols. Black carbon alone contributes at least 30 percent of this sum."

Menon and her collaborators used two sets of aerosol inventories by Indian researchers to run their simulations; their results were published online in the journal Atmospheric Chemistry and Physics.

The actual contribution of black carbon, emitted largely as a result of burning fossil fuels and biomass, may be even higher than 30 percent because the inventories report less black carbon than what has been measured by observations at several stations in India. (However, these observations are too incomplete to be used in climate models.) "We may be underestimating the amount of black carbon by as much as a factor of four," she says.

The findings are significant because they point to a simple way to make a swift impact on the snow melt. "Carbon dioxide stays in the atmosphere for 100 years, but black carbon doesn't stay in the atmosphere for more than a few weeks, so the effects of controlling black carbon are much faster," Menon says. "If you control black carbon now, you're going to see an immedi
'/>"/>

Contact: Julie Chao
JHChao@lbl.gov
510-486-6491
DOE/Lawrence Berkeley National Laboratory
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. New management methods extend blackberry season
2. Beyond sunlight: Explorers census 17,650 ocean species between edge of darkness and black abyss
3. Skunks strategy not just black and white
4. Black rat does not bother Mediterranean seabirds
5. System that regulates blood pressure is amiss in some healthy, young blacks
6. Antioxidants in Midwestern black raspberries influenced by production site
7. Scientists find black gold amidst overlooked data
8. New blackberry introduced
9. Biologists solve mystery of black wolves
10. Chemopreventive agents in black raspberries identified
11. Study: urban black bears live fast, die young
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Black carbon a significant factor in melting of Himalayan glaciers
(Date:1/22/2015)... , Jan. 9, 2015 Valid S.A. ("Company") (BM&FBOVESPA: VLID3 ... in general the State of Washington,s ... a new enrollment and central issuance system for driver,s licenses ... The project planning and development will start in January ...
(Date:1/22/2015)... MADISON, Wis. , Jan. 15, 2015  BellBrook ... for drug discovery, announced the launch of a ... of the company,s Transcreener UDP Assay, a high ... enzymes. The new assay will allow for sensitive ...
(Date:1/22/2015)... Issued by Small Cap IR. In 2011, Nilson Report,s annual ... merchants on the leading payment cards rose to $135.3 billion ... prepaid cards reached 6.54 billion.  Eight million credit card users ... 2012, and credit and debit card fraud resulted in $11.27 ...
Breaking Biology News(10 mins):Valid USA Signs Contract For Washington Driver's License Issuance 2BellBrook Labs Launches a High Throughput Screening Assay for Glycosyltransferases with TR-FRET Readout 2$4.80 Near Term Price Target with "Buy" given by CapRock Research for NXT-ID, Inc. (NASDAQ: NXTD) issued by Small Cap IR 2
... Philadelphia, PA, April 30, 2012 It is often ... eating habits, as they try to set a good example ... the addition of children into the home may affect parents, ... juggling schedules, or a child,s eating preferences may influence how ...
... can cause obesity, the fear of not having enough food ... to be presented Saturday, April 28, at the Pediatric Academic ... about not having enough food to feed one,s family, a ... families often are overweight, too. "Understanding the reasons why ...
... A water-rich polka dot pattern takes over the traditional rectangular ... years of Landsat images. In the dry Texas panhandle near ... irrigation, a farming method that improves water distribution to fields. ... Center-pivot irrigation works by pumping water from the center of ...
Cached Biology News:Starting a family does not encourage parents to eat healthier 2Fear of not having enough food may lead to obesity 2NASA's Landsat satellites see Texas crop circles 2
(Date:1/22/2015)... January 22, 2015 Crystal Diagnostics (CDx) Xpress ... it has received AOAC-PTM Certifications for the six non-O157 Shiga ... O145; collectively referred to as STEC or the “Big-6”) as ... forming unit (cfu) per 325 g of raw ground beef ...
(Date:1/22/2015)... zFlo Motion , a US leader in biomechanics software ... a new partner. STT-Systems has developed an impressive ... with offerings in the optical-motion capture, 3D scanning, and industrial ... unit), iSen, is opening eyes around the world. With no ...
(Date:1/22/2015)... Wilmington, DE (PRWEB) January 22, 2015 ... the Pistoia Alliance, which helps companies check the legal ... set to expand to China. , As their ... companies are globally adopting software solutions built as a ...
(Date:1/22/2015)... Diagenode, Inc., a leading global ... and complete solutions for epigenetics research, recently launched ... the need for manual processing. The new ChIPettor ... of histones or transcription factors and a semi-automated ...
Breaking Biology Technology:Crystal Diagnostics Awarded AOAC-PTM Accreditation for the Rapid Detection of “Big 6” E.coli Food Pathogens 23D Motion Capture Just Got Easy 2Global Compliance Service for Controlled Substances to Expand to China 2Diagenode Launches Unique Semi-Automated Solution for Chromatin Immunoprecipitation 2
... often experience a difficult time in securing conventional loans ... high-technology firms in located in the Eau Claire region ... some creative regional business collaboration. A group of nine ... Claire County have come together to create a $1 ...
... MADISON, Wis. - The Wisconsin Alumni Research Foundation ... Mentor Corporation a California-based publicly traded company (NYSE: MNT), ... marketing rights to the proprietary botulinum toxin technology developed ... pay WARF a royalty on sales of Botulinum toxin ...
... the passage of the much-hailed (and cursed) Sarbanes-Oxley ... have restructured their boards, revised their financial recording ... ethics. Many people have asked whether privately ... the same requirements now imposed upon public companies. ...
Cached Biology Technology:Eau Claire Pulls Together, Forms Million-Dollar Technology Loan Program 2Mentor Licenses Botulinum From WARF and Plans Wisconsin Manufacturing Facility 2Sarbanes-Oxley for the Rest of Us 2Sarbanes-Oxley for the Rest of Us 3Sarbanes-Oxley for the Rest of Us 4
... of 3 siRNAs specifically targeted to your ... product. The siTrio reagent guarantees you get ... gene when used under standard conditions (100 ... optimal transfection with one of B-Bridges controls). ...
... siTrio siRNA --- a cocktail of 3 ... of interestis our most popular product. The ... 75% knockdown of your target gene when ... for transfection and confirmation of optimal transfection ...
... has improved stability and convenience from the former ... has overcome this problem but also produced some ... the formulation of HRP conjugated antibody from lyophilized ... change, the stability of the conjugate has improved ...
... multi-purpose, high gel-strength agarose suitable for a ... conventional constant field to Pulsed Field Gel ... strength and exclusion limits, Multi ABgarose can ... running times. This in turn means reduced ...
Biology Products: