Navigation Links
Regional nuclear conflict would create near-global ozone hole, says CU-Boulder study
Date:4/7/2008

A limited nuclear weapons exchange between Pakistan and India using their current arsenals could create a near-global ozone hole, triggering human health problems and wreaking environmental havoc for at least a decade, according to a study led by the University of Colorado at Boulder.

The computer-modeling study showed a nuclear war between the two countries involving 50 Hiroshima-sized nuclear devices on each side would cause massive urban fires and loft as much as 5 million metric tons of soot about 50 miles into the stratosphere, said CU-Boulder Research Associate Michael Mills, chief study author. The soot would absorb enough solar radiation to heat surrounding gases, setting in motion a series of chemical reactions that would break down the stratospheric ozone layer protecting Earth from harmful ultraviolet radiation, said Mills.

We would see a dramatic drop in ozone levels that would persist for many years, said Mills of CU-Boulders Laboratory for Atmospheric and Space Physics. At mid- latitudes the ozone decrease would be up to 40 percent, which could have huge effects on human health and on terrestrial, aquatic and marine ecosystems.

A paper on the subject, titled Massive Global Ozone Loss Predicted Following A Regional Nuclear Conflict, appeared the week of April 7 in the Proceedings of the National Academy of Sciences. Co-authors on the study include CU-Boulder Professor Brian Toon, UCLA Professor Richard Turco and National Center for Atmospheric Research scientists Douglas Kinnison and Rolando Garcia.

According to the computer simulations, fires ignited in large cities by nuclear explosions would send several million metric tons of soot into the upper stratosphere, which would be heated by massive smoke injections. Higher temperatures would accelerate catalytic reaction cycles in the stratosphere, particularly reactions of nitrogen oxide gases known collectively as NOx that destroy ozone, Mills said.


'/>"/>
Contact: Michael Mills
mills@colorado.edu
303-492-7767
University of Colorado at Boulder
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Brown hosts regional bioengineering conference
2. UD named a regional research participant in National Children’s Study
3. Nuclear cannibals
4. Group led by Stanford physicist says theres an urgent need for nuclear detectives
5. Managing nuclear wastes for the millennia
6. Improving detection of nuclear smuggling goal of computer model of mechanical engineer
7. Where does stored nuclear waste go?
8. Nuclear desalination
9. Choices and Challenges forum to address nuclear power issue
10. SNM applauds NAS study showing need to restore federal nuclear medicine research funding
11. Homeland Security awards 2 grants to Rutgers for nuclear threat detection
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Regional nuclear conflict would create near-global ozone hole, says CU-Boulder study
(Date:9/23/2014)... soils store four times more carbon than the ... can have a big effect on atmospheric greenhouse ... Nature Climate Change concludes that climate ... or affect soil carbon storage, despite increases in ... U.S. Forest Service Research Ecologist Dr. Christian Giardina, ...
(Date:9/23/2014)... a cyberwar against cancer finds that the immune system ... research has found that cancer is already adept at ... the interplay between cancer and the immune system to ... said Rice University,s Eshel Ben-Jacob, co-author of a new ... Proceedings of the National Academy of Sciences . ...
(Date:9/23/2014)... is essential in the development of animals and plants. ... genetic information be translated in a reliable manner to ... The French-flag model of stripe formation is a classic ... different colours of the French flag, is caused by ... high, middle or low concentrations of the morphogen a ...
Breaking Biology News(10 mins):Study helps assess impact of temperature on belowground soil decomposition 2Immune system is key ally in cyberwar against cancer 2Immune system is key ally in cyberwar against cancer 3Recreating the stripe patterns found in animals by engineering synthetic gene networks 2
... patient, according to a study recently published in PLoS ... and includes bacteria common in the environment, some of ... "This is the first reported case of invasive human ... the article. , The new bacterium ...
... derived human gene trees by Alan R. Templeton, Ph.D, ... major waves of human migration out of Africa instead ... 'Out of Africa' replacement theory. , That theory holds ... ago and wiped out existing populations of humans. ...
... that normally develops when a mouse repeatedly experiences defeat ... gene for a memory molecule in a brain circuit ... of Health's (NIH) National Institute of Mental Health (NIMH) ... molecule continued to welcome strangers in spite of repeated ...
Cached Biology News:Scientists discover a new disease-causing bacterium in an immune-compromised patient 2New analysis shows three human migrations out of Africa 2Mice lacking social memory molecule take bullying in stride 2Mice lacking social memory molecule take bullying in stride 3
(Date:9/23/2014)... Cambridge Semantics, the leading provider of Smart ... in the recent ‘Hype Cycle for Life Sciences 2014 ... details key insights pertaining to the benefits in the ... Michael Shanler and Stephen Davies, “The use of these ... with scientific stakeholders, and support collaboration and innovation strategies ...
(Date:9/23/2014)... 23, 2014 Dr. Williams says, “Find ... on healthcare offers a three phase process that can ... delivery system that would go far beyond anything previously ... the delivery of healthcare.” , “Every effort to improve ... to provide discernable progress throughout that system because all ...
(Date:9/22/2014)... September 22, 2014 Pearl's Premium Ultra ... in drought tolerant grass seed this week with the ... The announcement coincides with the fact that it is ... as many believe. , As of the date ... favorable reviews by industry experts and the media including: ...
(Date:9/22/2014)... in a mouse model of pancreatic cancer identified distinct ... including significant differences from the primary tumor that may ... their study reported in the Sept. 25 issue of ... Hospital (MGH) Cancer Center identified several different classes of ... to be targets for improved treatment of the deadly ...
Breaking Biology Technology:Cambridge Semantics Identified in Gartner’s ‘Hype Cycle for Life Sciences 2014’ Report 2Dr. Ira Williams Offers the Healthcare Solution Necessary for Patient Safety Improvement 2Pearl's Premium Ultra Low Maintenance Lawn Seed Announces A Major Breakthrough In Drought Tolerant Grass Seed 2Massachusetts General study reveals gene expression patterns in pancreatic CTCs 2Massachusetts General study reveals gene expression patterns in pancreatic CTCs 3
... the World,s 3rd Largest Biotech Cluster By ... Developing more than 175 Local Companies, SAN ... 30th Anniversary Reunion for Hybritech employees will,take place on Saturday, ... Diego., In September 1978 Hybritech, San Diego,s "Granddaddy" biotech ...
... Inc., (TSX: IXS.V, OTC Bulletin Board: IXSBF, http://www.ixsbio.com ... of monoclonal antibodies based on its Dynamic Cross ... of Directors., Mr. Warden was a founding ... 23 years of practice, he has represented both ...
... Inc. (OTC Bulletin Board: CHBT) (,China-Biotics," "the,Company"), ... manufacture,research, development, marketing and distribution of probiotics ... equipment for its new manufacturing,facility., The ... is,located in Qing Pu Industrial Park (the ...
Cached Biology Technology:San Diego's Original Biotech Company Celebrates 30th Anniversary With Reunion 2InNexus Biotechnology Strengthens Patent Team With New Leadership 2China-Biotics, Inc. Provides Update on Construction of New Manufacturing Facility 2