Prohibit weather modification.

This bill prohibits individuals from intentionally releasing chemicals or using apparatuses within Montana to modify weather, change temperatures, or alter sunlight intensity. It directly affects anyone attempting to use artificial methods to control cloud or precipitation formation in the state's atmosphere. The law defines key terms like "chemicals" and "weather modification" to clarify what activities are banned, while allowing existing weather modification activities under current Montana statutes to continue. This creates a blanket ban on new weather alteration efforts unless they fall under the existing legal framework referenced in the bill.