Atmospheric geoengineering prohibition.

HB 208 prohibits anyone from intentionally injecting chemicals or substances into Wyoming's atmosphere to alter weather, temperature, or sunlight intensity. It directly affects government entities, researchers, or private companies conducting such atmospheric experiments within the state. Key provisions require the Wyoming Department of Environmental Quality to test air quality at affected sites (using methods like transmission electron microscopy) and protect individuals who report suspected violations in good faith. The bill also clarifies that existing publicly disclosed contracts are unaffected. This legislation aims to address concerns about unproven health and environmental risks from geoengineering activities.