Geoengineering Bills by State
2026 Regular Session
Adjourned Session ended Jun 1, 2026
Governor: Jeff Landry
| Bill # | Details | Effective | Status | |
|---|---|---|---|---|
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2025 Regular Session
Session Adjourn Thu 12 Jun 2025
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| SB46 | To prohibit the intentional release, or dispersion of chemicals into the environment of this state with the express purpose of affecting temperature. (8/1/25) | 1 Aug 2025 | Passed | |
| Louisiana becomes the latest state to enact a geoengineering prohibition, but uniquely accomplishes this by simultaneously repealing its existing weather modification licensing framework, effectively transitioning from regulated permission to outright ban. |
Last update Sun 8 Jun 2025 |
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| Note: Enacted as Act No. 95 of the 2025 Regular Session. | ||||
| SCR67 | To memorialize Congress to investigate geoengineering in Louisiana. | Passed | ||
| Louisiana's legislature unanimously memorialises Congress to investigate geoengineering activities over the state, with the resolution's preamble explicitly referencing atmospheric trails "distinct from ordinary contrails" as a matter of public concern. |
Last update Thu 12 Jun 2025 |
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| Note: Adopted by both chambers; transmitted to Congress. | ||||
| HB608 | Creates the Louisiana Atmospheric Protection Act (EG NO IMPACT See Note) | Failed in House | ||
| Louisiana's more aggressive geoengineering bill combined atmospheric prohibitions with telecommunications infrastructure mandates and electromagnetic radiation limits, but failed on the House floor 21-72 after the legislature had already enacted the simpler SB 46. |
Last update Mon 2 Jun 2025 |
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| Note: Failed on 3rd reading in House: yeas 21, nays 72 | ||||
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2026 Regular Session
Session Adjourn Mon 1 Jun 2026
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| SB189 | Prohibits the intentional release or dispersion, by burning of fuel, of chemicals into the environment of this state with the express purpose of affecting temperature. (8/1/26) | Passed | ||
| Senator Fesi returns to amend the atmospheric modification ban he authored just last year, adding seven words – “including by the burning of fuel in an aircraft engine” – to a prohibition that already covers dispersal “by any means,” making this less a legal expansion than a pointed declaration about what his law was always meant to cover. |
Last update Mon 1 Jun 2026 |
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| Note: Became Act No. 601 without the Governor's signature. | ||||
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