Missouri legislation · 2026 Regular Session
Missouri HB2389: Makes it unlawful to use weather modifications and authorizes DNR to bring a civil action for violations relating to weather modification
Status: In committee, May 15, 2026
What the bill says
To amend chapter 640, RSMo, by adding thereto one new section relating to weather modification. Section A. Chapter 640, RSMo, is amended by adding thereto one new section, to be known as section 640.870, to read as follows: 640.870. 1. As used in this section, the following terms (2) "Weather modification", any activity performed with the intention of producing artificial changes to the composition, behavior, or dynamics of the atmosphere including, but not limited to: (a) Dispersing substances into the air that serve as cloud condensation or ice nuclei, which alter the microphysical process w.
From the introduced text:
To amend chapter 640, RSMo, by adding thereto one new section relating to weather modification. Section A. Chapter 640, RSMo, is amended by adding thereto one new section, to be known as section 640.870, to read as follows: 640.870. 1. As used in this section, the following terms (2) "Weather modification", any activity performed with the intention of producing artificial changes to the composition, behavior, or dynamics of the atmosphere including, but not limited to: (a) Dispersing substances into the air that serve as cloud condensation or ice nuclei, which alter the microphysical process within the cloud; (b) Dropping pollution or biological agents from any form of aircraft designed to alter the earth's atmosphere, manipulate the environment, or cause harm to the food supply; or (c) The use of cloud seeding, meaning directing rainfall to a specific location by a process of injecting, releasing, or dispersing chemicals into the atmosphere. 2. It shall be unlawful to use any form of weather modification in the state. 3. Any individual may report violations of this section to the department. The department shall create an online publicly accessible form for reporting weather modification under this section. The department shall create procedures to investigate every such report to determine whether weather modification occurred. EXPLANATION -- Matter enclosed in bold-faced brackets [thus] in the above …