Cloud seeding is a weather adjustment method which has the aim of controlling precipitation.
This is done by dispersing substances high up in the air, usually by plane. These dispersed chemicals (mostly silver iodide) serve as a sort of condensation point or nuclei that pull water molecules in the air towards themselves. Over a few hours, rain or snow clouds would have formed and precipitation would be expected. Basically, it is used in arid regions where rain is scarce .
Cloud seeding is the way toward joining various types of synthetic operators — including silver iodide, dry ice and even regular table salt — with existing mists with an end goal to thicken the mists and increment the shot of rain or snowfall. The synthetic compounds are either shot into the mists or discharged by flying close and into the mists.
Cloud seeding may be a sort of weather modification that aims to vary the number or sort of precipitation that falls from clouds by dispersing substances into the air that function cloud condensation or ice nuclei, that alter the microphysical processes at intervals the cloud.