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SB 1432

prohibition; geoengineering

57th Legislature - First Regular Session Introduced by Dave Farnsworth

Arizona bans unauthorized geoengineering activities and climate modification projects, requiring legislative approval before any large-scale climate intervention can occur in the state.

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Bill Summary · SB 1432

Legislative bill overview

SB 1432 prohibits geoengineering activities in Arizona without explicit legislative authorization. The bill defines geoengineering as deliberate large-scale intervention in Earth's climate system and establishes penalties for unauthorized geoengineering projects. This represents a preemptive state-level restriction on climate modification technologies.

Why is this important

Geoengineering technologies—such as stratospheric aerosol injection or cloud seeding—remain largely theoretical but could have significant environmental and health consequences if deployed. Arizona's prohibition establishes a legal framework before such technologies are commercially available, potentially influencing how other states and federal regulators approach this emerging field. The bill reflects growing public concern about unintended environmental impacts and the need for democratic oversight of powerful technologies.

Potential points of contention

  • Definition ambiguity: The bill's definition of "geoengineering" may be too broad, potentially capturing legitimate weather modification practices like cloud seeding that Arizona farmers and water managers currently use
  • Federal vs. state authority: Geoengineering often involves transboundary atmospheric effects, raising questions about whether individual states can effectively regulate activities with continental or global implications
  • Innovation restrictions: A blanket prohibition could prevent Arizona from participating in legitimate climate research or adaptation technologies if federal policy shifts toward supporting certain geoengineering approaches

Compiled from official sources — confirm details with the bill’s official record.

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