Study says aerosol emissions cause temperature drop of 1 degree Celsius

• Increased emissions of aerosol into atmosphere due to pollution are are beginning ti have definite cooling effect of 1degree Celsius during Indian Summer Monsoon period. 
• The increased cooling is seen during the day while the night time temperature is increasing thus shrinking the diurnal temperature difference. This difference drives the convection process (where water evaporates and reached atmosphere as water vapour) and development of cloud. 
• As the diurnal temperature difference decreases the lower layer of atmosphere will reduce in height and come closer to the earth's surface. This will cause more aerosols to get into atmosphere thus impacting the lower atmospheric turbulence which may effect the distribution of moisture and rainfall. 

The Hindu - September 14 2018