Indonesia's disaster agency BNPB is updating its weather modification procedures after residents reported solid dry ice falling on homes. The new rules require special filters on aircraft hoppers and finer dry ice particles so the material evaporates before reaching the ground. The cloud seeding missions are part of haze response efforts tied to forest and land fires in Sumatra and Kalimantan. Dry ice is dispersed from aircraft at 5,000 to 7,000 feet to break the atmospheric inversion layer and let trapped smoke spread. BNPB says the method improved visibility at Palembang's airport, and operations have expanded to Central Kalimantan. The broader fire response includes 49 aircraft and more than 60,000 ground personnel across six provinces, with 454 hectares of burned land extinguished out of a 1,024 hectare target.
