Jeff Miller
EF5
Bacteria has been found to be a very common nuclei for the generation of snow...
http://www.cnn.com/2008/TECH/science/02/28/snow.bugs.ap/index.htmlWhich raises the question, Christner said, of whether planting crops known to be infected by Pseudomonas in areas experiencing drought might help increase precipitation there by adding more nuclei to the atmosphere.