Airborne particles in the form of naturally occurring dusts and human - produced
aerosols can serve as ice nuclei, sites around which water vapor condenses into clouds.
Not exact matches
nevertheless, both states
can coexist for a wide range of environmental conditions.5, 7
Aerosols, liquid or solid particles suspended in the atmosphere,
serve as Cloud Condensation Nuclei (CCN) and therefore affect the concentration of activated cloud droplets.8 Changes in droplet concentration affect key cloud properties such as the time it takes for the onset of significant collision and coalescence between droplets, a process critical for rain formation.»
Also, George Barnes created a DVD called: «Look Up» which
serves as a great introduction to (what everybody
can see in the sky above their heads) deliberate
aerosol spraying by jets in the troposphere... This
can be freely copied and given to the public along with the flyers.
Before a cloud
can produce rain or snow, rain drops or ice particles must form and
aerosols often
serve as the nuclei for condensation.
This suggests that the
aerosol indirect effect and in particular the increase of cloud cover
can serve as a possible explanation to the observed changes in surface illumination.