THE first few months of the year saw a sharp rise in the number of US states considering proposals to ban solar geoengineering, including cloud seeding as well as solar radiation management. As we’ve previously reported, Tennessee was the first state to adopt a ban (in April 2024), signed into law by Republican Governor Bill Lee. The legislation ‘prohibits the intentional injection, release, or dispersion, by any means, of chemicals, chemical compounds, substances, or apparatus within the borders of this state into the atmosphere with the express purpose of affecting temperature, weather, or the intensity of the sunlight‘.
