3 States Have Banned Weather Modification
Tennessee, Florida, and Louisiana have enacted laws banning or restricting geoengineering and weather modification activities within their borders. These laws represent a growing movement of state-level action on atmospheric transparency — driven by citizen demand for accountability over what is being released into the air they breathe.
Tennessee
EnactedBill
SB 2691 / HB 2063
Signed
April 2024
Effective
July 1, 2024
Penalty
Class C misdemeanor, up to $10,000/day
First state in the nation to ban geoengineering. Prohibits the intentional injection, release, or dispersal of chemicals, chemical compounds, substances, or apparatus into the atmosphere with the express purpose of affecting temperature, weather, or the intensity of sunlight.
Source: Tennessee Legislature — SB 2691→Florida
EnactedBill
SB 56
Signed
June 20, 2025
Effective
July 1, 2025
Penalty
Third-degree felony — up to 5 years in prison, up to $100,000 fine
First state to criminalize weather modification as a felony. Prohibits any person from conducting weather modification or climate engineering operations in the state. Requires airports to report any suspected weather modification activity. Establishes a public complaint system for citizens to report violations. Governor DeSantis signed it into law calling it protection for Floridians from chemical experimentation.
Source: Florida Senate — SB 56→Louisiana
EnactedBill
Act No. 95
Signed
2025
Effective
August 1, 2025
Penalty
Up to $200,000 per violation
Bans weather modification activities and requires reporting of suspected operations. The Louisiana Department of Environmental Quality established a public reporting portal where citizens can file reports of suspected weather modification activity. Over 400 citizen reports were filed in the first months after enactment.
Source: Louisiana DEQ — Act No. 95 Reporting Portal→Note on Montana
Montana's SB 473 passed the state Senate in March 2025 but was killed on the House floor on April 10, 2025 by a vote of 45-55. It is not currently enacted.
Additional Sources
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