Relating to a prohibition on weather and climate modification activities by a governmental entity.

SB 1154 prohibits Texas governmental entities from conducting weather or climate modification activities, including cloud seeding or "geoengineering" (defined as intentional atmospheric injections to alter temperature, weather, or sunlight). It directly affects state agencies, counties, and municipalities by banning their use of such activities, while exempting research by institutions of higher learning and nonprofit organizations. The bill repeals prior provisions allowing government cooperation for weather modification operations and removes exceptions for cloud-seeding under cooperative agreements. This is a concrete policy change restricting government involvement in atmospheric interventions, effective September 1, 2025.