Historic Reclamation Projects Bureau of Reclamation
2009

“In 1961 Congress allocated funding for the creation of a weather modification program headed by the Bureau of Reclamation. Project Skywater came fifteen years after Irving Langmuir, Vincent Schaefer, and Bernard Vonnegut of the General Electric Laboratories in Schenectady, New York, successfully demonstrated that “seeding” clouds with nucleating agents like dry ice (carbon dioxide) and silver iodide produced rain.”