Forget health impacts, tiny particles floating in the air are altering regional climates and affecting monsoon patterns and agricultural yield. These particles could be emanating from diesel and industrial emissions, biomass burning for cooking, forest fires and even dust.
As scientists probe the complex science of aerosols, the larger picture of these tiny particles is only beginning to emerge.

URL: http://www.downtoearth.org.in/cover.asp?foldername=20020815&filename=anal&sid=8&page=1&sec_id=9&p=1