[Read the Nature India blog Indigenus here: http://blogs.nature.com/indigenus/2013/08/aerosols-contributing-to-climate-change-in-india-china.html]
Researchers have found that these small airborne particles called aerosols (for example, black carbon particles in diesel exhaust and sulfate particles produced by coal burning) in India and China may indirectly contribute to climate change. Higher black carbon levels in the atmosphere lead to warming, whereas increased sulfate levels cause cooling.