Mississippi geoengineering ban; enact.

Mississippi HB 552 defines "geoengineering" as the intentional release of chemicals into the atmosphere within state borders to alter temperature, weather, or sunlight intensity. The bill amends existing pollution control laws to explicitly prohibit such activities and grants the Mississippi Air and Water Pollution Control Commission authority to enforce the ban and impose penalties for violations. It directly affects any entity - federal or private - planning to conduct atmospheric geoengineering within Mississippi. The legislation aims to protect public health and environmental welfare by adding geoengineering to the state's regulatory framework under air and water pollution laws.