Subscribe free to our newsletters via your
. Earth Science News .

Subscribe free to our newsletters via your

Haze Is Heating Up The Arctic

File photo: Haze over the Fuji Station, Antartica.
by Staff Writers
Salt Lake City (UPI) May 11, 2006
U.S. scientists in Utah say they have found yet another contributing force to polar warming: haze. Arctic climate already is known to be particularly prone to global warming caused by greenhouse gases. Now, a University of Utah study finds the Arctic haze -- consisting of particulate pollution from midlatitude cities -- mixes with thin clouds, enabling them to become more efficient at trapping heat.

The effect makes the Arctic up 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 doctoral student Chuanfeng Zhao.

Arctic haze has been observed since the Industrial Revolution began about 1750.

Garrett said the particulate pollution modifies clouds so they warm the surface. He said the effect is most pronounced during the Arctic winter when it is dark and there is no sunlight. That's when the Arctic is most polluted because there is almost no precipitation to wash out the pollutants, and there also is a strong inversion.

The study previously appeared in the April 6 issue of the journal Nature.

Source: United Press International

Related Links

Republic Status Sought For Emerging Arctic Islet
Oslo (SPX) May 11, 2006
A British artist announced plans Wednesday to establish a republic on an Arctic island the size of a football pitch created by global warming.

  • MSV Supports New Laws Boosting Satellite Communications Provisions For Emergencies
  • Indians At Risk In Afghanistan
  • Pacific Tsunami Alert System Tests To Start Mid-May
  • Bush Contributed To Extent Of Katrina Aftermath Says Senator Lieberman

  • Recent Hurricane Upsurge A Weak Link To Global Warming
  • China, India Lead 15-Percent Rise In CO2 Emissions
  • Dutch Study Sheds Light On Climate Change's Threat To Birds
  • Greenhouse Gas Emissions Increased In 2005

  • Tibet Provides Passage For Chemicals To Reach The Stratosphere
  • Raytheon Tests Advanced Space-Based Weather Sensor
  • African Wetland Managers Armed With New Technology
  • ESA To Host Atmospheric Science Conference

  • World Bank Carbon Trading Gets Off To An Explosive Start
  • Scientists Discover Super Superconductor
  • China's Three Gorges Dam To Be Completed On May 20
  • Lives Could Be Saved By Switching Household Fuels

  • US Bird Flu Toll Could Be As High As 2 Million
  • H5N1 Adapts To Summer, Water, Heat
  • AIDS Cocktail Could Be Soon Down To Just One Pill
  • China Reports 18th Human Case Of Bird Flu

  • Train In Slovenia Kills Entire Bear Family
  • Malaysia Seizes Lizards, Tortoises Illegally Bound For Thailand
  • The Secret Lives Of Sea Slugs
  • Bats Use Guided Missile Strategy To Capture Prey

  • New "Toxic" Ship Bound For India
  • China Says River Clean After Thaw
  • China's "Cancer Villages" Pay Heavy Price For Economic Progress
  • Russian Ecologists Despair Over Lack Of Govt Vision

  • Evolutionary Forces Explain Why Women Live Longer than Men
  • Rwandan Pygmies Fight For Survival In Eco-Sensitive Times
  • Child Labor On Way Out
  • Monkey Business Equals Human Business

  • The content herein, unless otherwise known to be public domain, are Copyright 1995-2006 - SpaceDaily.AFP and UPI Wire Stories are copyright Agence France-Presse and United Press International. ESA PortalReports are copyright European Space Agency. All NASA sourced material is public domain. Additionalcopyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by SpaceDaily on any Web page published or hosted by SpaceDaily. Privacy Statement