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Scientists are working to better understand atmospheric brown clouds and their effects. (Image: Nicolle Rager Fuller, National Science Foundation)

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Researchers link weakening wind patterns in the last 30 years to a buildup of <a href="http://www.nasa.gov/centers/langley/news/factsheets/Aerosols.html" target="_blank" class="news_link" title="Aerosols in the atmosphere">aerosols in the atmosphere</a> over India. An increase in atmospheric aerosols causes sunlight to be deflected from the earth’s surface, which creates a dimming effect at ground level. Scientists say that this dimming may be responsible for more intense cyclones.


The buildup of aerosols creates formations known as <a href="http://www-abc-asia.ucsd.edu/" target="_blank" class="news_link" title="Atmospheric brown clouds">atmospheric brown clouds</a> (ABCs), in which smog from diesel emissions, soot and other byproducts of burning biomass accumulate and become widespread enough to affect regional climate.


There is an upbeat side to the study. Its authors suggest the atmospheric concentrations of pollutants can be quickly and drastically reduced using currently-available technologies.



<a href="http://www.nsf.gov/news/news_summ.jsp?cntn_id=122072&org=NSF&from=news" target="_blank" class="news_link" title="Read more">Read full article here</a>




Source: National Science Foundation via Science World, Voice of America

Pollution Intensifies Cyclones, Disruption of wind shear enables stronger storms