GeoLawWatch: Tracking Weather & Climate Legislation

Tracking weather modification, cloud seeding, and geoengineering bills in real time across the US.

Geoengineering Bills by State

2026 Regular Session

Adjourned Session ended Jun 1, 2026

Governor: Jeff Landry

Statutory Squirrel blog

Bill # Details Effective Status
2025 Regular Session Session Adjourn Thu 12 Jun 2025
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
  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
  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
  Note: Failed on 3rd reading in House: yeas 21, nays 72
2026 Regular Session Session Adjourn Mon 1 Jun 2026
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
  Note: Became Act No. 601 without the Governor's signature.