Geoengineering Bills by State
2026 Regular Session
Adjourned Session ended Mar 6, 2026
Governor: Mark Gordon
| Bill # | Details | Effective | Status | |
|---|---|---|---|---|
|
2025 Regular Session
Session Adjourn Thu 6 Mar 2025
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| HB0208 | Atmospheric geoengineering prohibition. | Died in Committee | ||
| Wyoming's geoengineering ban would have ended the state's 13-site cloud seeding program, which brings in $570,000 annually from out-of-state water authorities desperate to boost Colorado River snowpack. The bill died in committee after its fiscal impact on existing water development operations became clear. |
Last update Mon 3 Mar 2025 |
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| Note: Minerals committee failed to report before deadline of 7th Feb 2025 | ||||
|
2026 Regular Session
Session Adjourn Fri 6 Mar 2026
|
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| HB0012 | Clean Air and Geoengineering Prohibition Act. | Immediately | Failed Introduction | |
| Wyoming's comprehensive geoengineering ban creates felony penalties of up to 5 years' imprisonment and $500,000+ fines for atmospheric interventions, while explicitly preserving the state's existing cloud seeding permit system and uniquely tasks the Department of Environmental Quality with monitoring all aircraft, space-based platforms, and ground facilities for prohibited atmospheric contaminant dispersal. |
Last update Mon 9 Feb 2026 |
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| Note: Failed Introduction 24-38 | ||||
| HJ0001 | Prohibiting unauthorized atmospheric geoengineering. | N/A | Failed Introduction | |
| Wyoming's Legislature is requesting Congressional action to prohibit unauthorised atmospheric geoengineering over the state, citing concerns that federal agencies and military contractors are dispersing chemicals such as aluminium oxide, barium, and stratospheric sulphates without public knowledge, while explicitly preserving Wyoming's existing ground-based cloud seeding operations. |
Last update Mon 9 Feb 2026 |
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| Note: Failed Introduction 33-29 | ||||
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