Navigation Links
Pollutant haze heats the Arctic

Arctic climate already is known to be particularly prone to global warming caused by industrial and automotive emissions of carbon dioxide and other greenhouse gases. Now, a University of Utah study finds a surprising new way society's pollutants warm the far north: the Arctic's well-known haze ?made of particulate pollution from mid-latitude cities ?mixes with thin clouds, making them better able to trap heat.

The effect makes the Arctic 2 degrees to 3 degrees Fahrenheit warmer during polluted, cloudy episodes than it would be if the air was clean, concludes the study by Tim Garrett, an assistant professor of meteorology, and Chuanfeng Zhao, a doctoral student in meteorology.

"The Arctic is warming very quickly, especially compared with the rest of the world, due to the greenhouse effect caused by carbon dioxide from factories and cars," Garrett says.

"Now we are finding there is another way pollution can warm up the Arctic. Particulate pollution from factories and cars can be transported long distances to the Arctic, where it changes clouds so that they become more effective blankets, trapping more heat and further aggravating climate warming."

Arctic haze has been seen in the Arctic since the Industrial Revolution began about 1750. "Whalers and explorers noticed what looked like pollution and couldn't figure out where it was coming from," Garrett says. The Inuit (Eskimos) called it "poo-jok."

Scientists already knew particulate pollutants make clouds more effective at reflecting sunlight, which reduces surface temperatures. So the newly discovered effect is a surprise.

"What we found is an opposing effect where particulate pollution changes clouds so they warm the surface," Garrett says. "This effect is most pronounced in Arctic winter when it is dark and there is no sunlight. The Arctic winter is when it is most polluted because there is almost no precipitation to wash out the pollutants, and there also is a
'"/>

Source:University of Utah


Page: 1 2 3 4

Related biology news :

1. Wild grasses and man-made wheats advance research capabilities
2. Survival of the selfless - scientists find cheats dont always prosper
3. Sports cheats beware -- new test detects previously undetectable drug
4. Lands surface change on Alaska tundra creating longer, warmer summers in Arctic
5. Displaced songbirds navigate in the high Arctic
6. Record air pollution above the Arctic
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Pollutant haze heats the Arctic

(Date:7/23/2014)... Springer will publish the International Journal of Fuzzy ... the Taiwan Fuzzy Systems Association (TFSA). The cooperation will ... the area of fuzzy research., The International Journal ... papers that deal with the theory, design and application ... extension theory systems ranging from hardware to software. Launched ...
(Date:7/23/2014)... , July 23, 2014   MedNet Solutions ... in clinical study management systems, is pleased to ... proven life sciences industry executive with over 25 ... Officer (COO).  Clareece will be responsible for MedNet,s ... operational efficiency and quality product/service delivery.  ...
(Date:7/23/2014)... the principal bacteria that cause dental caries, has ... time, possibly coinciding with dietary change linked to ... in a study by researchers from the Universitat ... de Genmica para la Biodiversidad (National Laboratory of ... first time, have sequenced genetic material from this ...
Breaking Biology News(10 mins):MedNet Appoints Clareece West As Chief Operating Officer 2Ancient genetic material from caries bacterium obtained for the first time 2
... For the first time, researchers at the University of ... to tap into nitrogen found in rocks, boosting the trees, ... the atmosphere. Given that carbon dioxide is the most ... how rapidly the earth will warm in the future, the ...
... CREEK, Calif.Understanding the flow and processing of carbon in ... surface, is central to understanding global climate cycles, with ... below the ocean surface exists a "twilight zone" where ... this, it is known that microbes resident at these ...
... Examining brain damage that occurs when fetuses in the ... Institute have discovered that damage does not occur randomly but ... fatty molecule called LPA, acting through a receptor that transfers ... mice suggests that LPA may also be linked to the ...
Cached Biology News:Bedrock nitrogen may help forests buffer climate change, study finds 2Bedrock nitrogen may help forests buffer climate change, study finds 3Up from the depths: How bacteria capture carbon in the 'twilight zone' 2Discovery suggests way to block fetal brain damage produced by oxygen deprivation 2Discovery suggests way to block fetal brain damage produced by oxygen deprivation 3
(Date:7/23/2014)... Israel , July 23, 2014 ... a portfolio company of Trendlines Agtech , ... of Israel,s leading agricultural ... , Valentis,s technology combines nanocrystalline cellulose ... pulp waste, with additional nanoparticles to produce highly ...
(Date:7/23/2014)... 2014 Shire plc (LSE: ... specialty biopharmaceutical company, and ArmaGen, a US privately ... and collaboration agreement for AGT-182, an investigational enzyme ... both the central nervous system (CNS) and somatic ... This collaboration strengthens Shire,s rare disease pipeline of ...
(Date:7/23/2014)... California (PRWEB) July 23, 2014 With the ... in HD resolution for more than 15 minutes, Fastec Imaging ... the world of high speed imaging. “Finally, a high speed ... camera we use in our everyday lives.” proclaims Matt Kearney, ... Fastec has always been to demystify and simplify the traditionally ...
(Date:7/23/2014)... 2014 Astra Nova Training ... consultancy and pharma training services, and the ... , a non-profit integrating the expertise and investments ... a global system for clinical trials, are pleased ... the expertise of industry professionals through improved and ...
Breaking Biology Technology:Valentis Nanotech Signs MOU to Integrate Technology in Thermoplastics Production 2Shire Enters Strategic Licensing and Collaboration Agreement With ArmaGen 2Shire Enters Strategic Licensing and Collaboration Agreement With ArmaGen 3Shire Enters Strategic Licensing and Collaboration Agreement With ArmaGen 4Shire Enters Strategic Licensing and Collaboration Agreement With ArmaGen 5Fastec Imaging Introduces the First High Speed Camcorder 2Fastec Imaging Introduces the First High Speed Camcorder 3Astra Nova and ACRES Partner on Quality and Access of Training for Research Professionals 2Astra Nova and ACRES Partner on Quality and Access of Training for Research Professionals 3
... Mass., Sept. 17 Interleukin Genetics,(Amex: ILI ... Scientific,Officer, Kenneth Kornman, DDS, PhD, will present at ... Alexandria, VA. The conference will,focus on innovative methods ... Among a group of presenters that includes industry ...
... Bio IV NVS Strategic Fund L.P. invests $10 ... Radius Health ("Radius"),announced today that it has ... to,obtain an exclusive worldwide license (except Japan) to ... drug,candidate. BA058 is a proprietary analog of hPTHrP ...
... Medical School researchers have successfully synthesized a DNA-based memory ... step forward in the emerging field of synthetic biology. ... DNA, researchers in the lab of Professor Pamela Silver, ... Systems Biology, not only reconstructed the dynamics of memory, ...
Cached Biology Technology:Interleukin Genetics President and Chief Scientific Officer to Present at Immunotoxicology V Conference 2Interleukin Genetics President and Chief Scientific Officer to Present at Immunotoxicology V Conference 3Radius Grants Major Pharmaceutical Company Exclusive Option to License BA058 for Osteoporosis 2Scientists synthesize memory in yeast cells 2Scientists synthesize memory in yeast cells 3
Bethyl Laboratories packages antibodies, conjugates and calibrators to provide quantitative ELISA kits. Each kit contains the following components, sufficient for 1000 single well assays....
Bethyl Laboratories packages antibodies, conjugates and calibrators to provide quantitative ELISA kits. Each kit contains the following components, sufficient for 1000 single well assays....
Normal serum collected from healthy Kunming mice....
Request Info...
Biology Products: