A fleet of drones, trucks, and small planes sprayed water to try to reduce dust around Bangkok on Thursday, after unhealthy levels of air pollution forced city schools to close Wednesday for the rest of week.
Thailand Uses Drones to Tackle Pollution
A fleet of drones, trucks, and small planes sprayed water to try to reduce dust around Bangkok on Thursday, after unhealthy levels of air pollution forced city schools to close Wednesday for the rest of week.