This pollution layer was observed during the Indian Ocean Experiment (INODEX) intensive field observation in 1999. Subsequently the United Nations Environment Programme (UNEP) has been supporting a project called ABC (still ongoing in 2007).
Although aerosol particles are generally associated with a global cooling effect, recent studies have shown that they can actually have a global warming effect in certain regions such as the Himalayas. The warming effect of the Asian Brown Cloud may be an important factor in the retreat of the Himalayan glaciers. The United Nations Environment Program is worried that Asian glacial melting could lead to water shortages and floods for the hundreds of millions of people who live downstream.
BROWN CLOUD NOT GOING ANYWHERE STUDY FIGURES IT WILL SMUDGE DENVER'S IMAGE FOR AT LEAST 20 YEARS WITH NO QUICK FIX IN SIGHT.(Local)
May 05, 1998; Byline: Joseph B. Verrengia Rocky Mountain News Science Writer Scrubbing the brown cloud from metro Denver's skies could take 20...