Fig. 4: Temperature-dependent effect of biogenic secondary organic aerosol (BSOA) on cloud properties.
From: Significance of the organic aerosol driven climate feedback in the boreal area
In warmer conditions (on right), volatile organic compound (VOC) emissions from vegetation are higher compared to colder condition (on left). Consequently, more VOC are available for oxidation and forming BSOA. This leads to higher organic aerosol mass loading and higher cloud condensation nuclei (CCN) number concentration. These in turn lead to higher number but smaller size of the cloud droplets, increased cloud optical thickness, and consequently to stronger aerosol indirect effect on climate.
