2019 Fact Sheet | Wyoming Water Development Office | 23 Cloud Seeding (wyoleg.gov)
The Wyoming Water Development Office (WWDO) became interested in cold season cloud seeding (a form of weather modification) in the early 2000’s.
Fact Check Silver Iodide Toxicity:
“The major hazards encountered in the use and handling of silver iodide stem from its toxicologic properties. Toxic by all routes (ie, inhalation, ingestion, and dermal contact), exposure to this odorless, light yellow, crystalline substance may occur from its use in seeding clouds for rain-making…”