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1. Asian Brown Cloud - Wikipedia, The Free Encyclopedia
The Asian brown cloud is a layer of air pollution that covers parts of South Asia, namely the northern Indian Ocean, India, and Pakistan Viewed from satellite photos, the cloud
Asian brown cloud
From Wikipedia, the free encyclopedia Jump to: navigation search The Asian brown cloud is a layer of air pollution that covers parts of South Asia , namely the northern Indian Ocean India , and Pakistan Viewed from satellite photos , the cloud appears as a giant brown stain hanging in the air over much of South Asia and the Indian Ocean every year between January and March, possibly also during earlier and later months. The term was coined in reports from the UNEP Indian Ocean Experiment (INDOEX).
edit Causes
In some humidity conditions, it forms haze . It is created by a range of airborne particles and pollutants from combustion (e.g. woodfires, cars, and factories), biomass burning and industrial processes with incomplete burning. The cloud is associated with the winter monsoon (November/December to April) during which there is no rain to wash pollutants from the air.
edit Observations
This pollution layer was observed during the Indian Ocean Experiment (INDOEX) intensive field observation in 1999 and described in the UNEP impact assessment study published 2002. Scientists in India claimed that the Asian Brown cloud is not something specific to Asia.

2. Asian Brown Cloud (Distinguished Lecture)
Asian Brown Cloud V. Ramanathan. Victor P. Alderson Professor of Ocean Sciences Director of the Center for Atmospheric Sciences Scripps Institution of Oceanography
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Asian Brown Cloud
V. Ramanathan
Victor P. Alderson Professor of Ocean Sciences
Director of the Center for Atmospheric Sciences
Scripps Institution of Oceanography
University of California, San Diego
About the Lecturer
Ramanathan is an expert on atmospheric and Climate sciences, whose research focuses on global climate dynamics, solar radiation transfer, the greenhouse effect, clouds, aerosols and satellite remote sensing. Ramanathan is widely recognized by the scientific community for his work on the greenhouse effect of numerous anthropogenic traces gases in the atmosphere. He was the first to demonstrate that CFCs are major greenhouse gases and significant contributors to global warming. On a per molecule basis, the CFCs were about 10000 times more effective than CO as a greenhouse gas. In the 1980s he led an WMO sponsored international study that established the field of chemistry-climate interactions. He followed this work with a focus on clouds, the Gordion knot of the climate problem. Using a satellite radiation budget experiment, he demonstrated with collaborators at NASA, that clouds had a global radiative cooling effect . To understand how aerosols are modifying global warming, he designed and served as co-chief scientist for the $25M Indian Ocean Experiment, which led to the discovery of the South Asian Brown haze and its surprisingly large impact on the solar heating of the region. This work established the strong link between air pollution and climate, and led to the Asian Brown Cloud project, sponsored by the United Nations. He is now designing an experiment involving unmanned aircraft and miniature instruments to understand how the planet regulates its albedo.

3. NASA - NASA Eyes Effects Of A Giant 'Brown Cloud' Worldwide
NASA scientists recently announced that a giant, smoggy atmospheric brown cloud that forms over South Asia and Indian Ocean has intercontinental reach, and has effects around


5. Denver's Brown Cloud At Steve Spangler Science
Denver's Brown Cloud Cool, crisp, clean mountain air has long been an important reason why people move to Colorado. Unfortunately, the air in the city of Denver isn't quite

6. How Now Brown Cloud? - Denver News Story - KMGH Denver
How Now Brown Cloud? Study Casts Doubt On PollutionRelated Asthma Problems
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How Now Brown Cloud?
Study Casts Doubt On Pollution-Related Asthma Problems
POSTED: 12:05 pm MST November 9, 2004 UPDATED: 1:29 pm MST November 9, 2004 DENVER As we move into winter, Denver moves into the season for the "brown cloud." It settles like a shroud over the city as the cold air traps the pollution at ground level. The skyline of Denver under the "Brown Cloud" on a very bad day. More
For years, health experts believed the brown cloud caused all kinds of problems. But now a new study by doctors at Denver's National Jewish Medical and Research Center said the cloud has a minimal effect on kids with asthma. For years, doctors have thought the pollution helped kick up the wheezing and coughing in kids especially when the cloud was really thick and brown. But doctors at National Jewish studied 150 Denver children over three years and found that wintertime air pollution "had no significant effect on asthma exacerbations or lung function," said Dr. Nathan Rabinovitch. "We were surprised, definitely," said Rabinovitch, a lead author of the study and a pediatric allergist at National Jewish.

7. Brown Cloud | Define Brown Cloud At
Main Entry brown cloud Part of Speech n Definition a thick large and persistent mass of water vapor and air pollution forming in the atmosphere; an instance of such clouds cloud

8. - National Science Foundation (NSF) News - Brown Cloud
Press Release 07087 Brown Cloud Particulate Pollution Amplifies Global Warming. Jeopardizes Asian water supplies, contributes to Himalayan glacier melt

9. The Governor's Brown Cloud Summit
1999 Average best and worst visibility impairment in the Phoenix metropolitan area Welcome to the Governor's Brown Cloud Summit Web site. In March 2000, Governor Jane Dee Hull
1999 Average best and worst visibility impairment
in the Phoenix metropolitan area
In March 2000, Governor Jane Dee Hull established the Brown Cloud Summit with 32 members and represents a wide array of interests and perspectives. Brown Cloud Assessment Tool (BCAT) , the Summit was able to convert assumptions about the emission effects and costs of control option scenarios into projected improvements in visibility and cost effectiveness of the improvement. During the public comment period hundreds of comments were reviewed and considered in preparation of the Jan. 16, 2001 Final Report and Appendices House Bill 2538 . The bill authorized ADEQ and other state and local agencies to implement several pollution control programs. For ADEQ this included developing a roadside diesel vehicle testing program, establishing a visibility index to assist the Valley in tracking visibility improvement and developing engine idling restriction ordinances for the counties in the Phoenix metropolitan area. Brown Cloud Assessment Tool (BCAT)

10. South Asia Brown Cloud Is Homemade: Scientific American Podcast
60Second Science Energy Sustainability South Asia Brown Cloud Is Homemade. In a study published in the journal Science, researchers found that a brown pollution cloud

11. Brown Cloud - Phoenix Air Pollution - Bad Air In Phoenix
Is breathing Phoenix air bad for you? Here's what the research shows about air pollution in Phoenix and the Brown Cloud in the Valley.
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    Air Pollution Creates a Brown Cloud Over Phoenix From Steve Eastwood
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    Brown Cloud Over Phoenix zSB(3,3) January 2006 At one time, Arizona was internationally known as a respite for those suffering respiratory difficulties. With ailments ranging from allergies to asthma to tuberculosis, patients flocked to the area for relief.
    The Brown Cloud
    Since the early 1990s, residents of the Valley of the Sun have been looking for some relief of their own. The "Brown Cloud", as it has come to be known, shrouds the Phoenix area in pollutants nearly year-round resulting in the American Lung Association giving Maricopa County its lowest grade for air quality in both ozone and particulates in 2005. According to the association's "State of the Air 2005" report, over 2.6 million, or 79%, of the county's residents are at high risk for respiratory complications due to air quality. Among those at risk are residents with asthma, bronchitis, cardiovascular disease, and diabetes.

    12. Beware The Atmospheric Brown Cloud - Atmospheric Brown Cloud, Pollution, Smog Mo
    Burning forests match cars in their contribution to smog
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    Beware the atmospheric brown cloud
    Burning forests match cars in their contribution to smog
    recent study adds to the debate on the importance of cars relative to forest fire pollution in Southeast Asia. Every winter over Southeast Asia and the Indian Ocean, an enormous atmospheric brown cloud (ABC) tiptoes in on little cat feet. The ABC is caused by aerosols in the lower atmosphere, and has generally been attributed to urbanization and the associated increase in fossil fuel combustion. As if you needed more reasons to be concerned with forest fires in Indonesia, you can now add the ABC to a list of major environmental impacts. In this case, the implications are complex: aerosols actually have a net cooling effect over the region they cover. So reducing aerosol production via decreased fossil fuel combustion and/or reduced deforestation acts as a positive feedback to warming. Adding further complexity, the sheer size of the ABC is enough to affect weather patterns over the entire Asian subcontinent. What this means for monsoon rains and heat waves across India remains unknown. Like most climate science, the results are complicated (cars

    Certain kinds of weather, especially in the winter, help cause what is known as the brown cloud, a yellowishbrown strip visible along the eastern horizon.
    Certain kinds of weather, especially in the winter, help cause what is known as the brown cloud, a yellowish-brown strip visible along the eastern horizon. It is produced by emissions from cars, industry, and agriculture along the Front Range, especially in the South Platte River valley near Denver. The brown cloud forms through an inversion, a shallow pool of relatively cool air near the ground that is separated from warmer air aloft. The more shallow the pool, the more concentrated the pollutants and, typically, the more vivid the brown cloud. Above the inversion, the air may be quite fresh and the visibility high. Trapped inside the brown cloud are a variety of pollutants. Some are invisible, such as methane, yet they may still be toxicfor instance, carbon monoxide and ozone. Others are oxides of nitrogen and sulfur and tiny particles of grit and dust that help give the cloud its brown color. On some days, Boulder Valley is inside its own brown cloud that makes the view in all directions appear hazy. Weather Trail Home Page
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    14. - What Is The Asian Brown Cloud
    The Asian Brown Cloud is an air of debris in Asia. It covers South, South East, and East Asia. It is almost like fog but is actually smog. From satellite views it is like a

    15. Customer Feedback For Brown Cloud
    To get a high score, you can suck / blow, causing lots of cloud collisions that increase score and multiplier. This should be balanced so the gameplay required for high scores

    16. Asian Brown Cloud - VisWiki
    Asian brown cloud United Nations Environment Programme, Himalayas, ASEAN Agreement on Transboundary Haze Pollution, Commonwealth Scientific and Industrial Research Organisation

    17. Haunting Asia, A Brown Cloud Blots Out Sun - The New York Times
    Nov 13, 2008 Haunting Asia, a brown cloud blots out sun By Andrew Jacobs Published Thursday, November 13, 2008

    18. Brown Cloud - Improvised Music Project
    April 24th, 730pm, at the Ethnic Cultural Theatre (3940 Brooklyn Ave NE • Seattle, Washington 98195) Suggested Donation $515 Brown Cloud is a bombastic trio comprised of

    19. Brown Cloud - Phoenix, AZ
    Phoenix, AZ 85004 I've been in Arizona since early 1999 and in that time, I don't think I ever saw the Brown Cloud engulf the McDowell Mountain range, Desert Mountain and

    20. Asian Brown Cloud Encyclopedia Topics |
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