India Trials Delhi Cloud Seeding To Clean Air in World's Most Polluted City

The Delhi regional government is trialling a cloud-seeding experiment to induce artificial rain, in an effort to clean the air in the world's most polluted city. From a report: The Bharatiya Janata party (BJP) has been proposing the use of cloud seeding as a way to bring Delhi's air pollution under control since it was elected to lead the regional government this year.

Cloud seeding involves using aircraft or drones to add to clouds particles of silver iodide, which have a structure similar to ice. Water droplets cluster around the particles, modifying the structure of the clouds and increasing the chance of precipitation. Months of unpredictable weather over India's capital had put the BJP's cloud-seeding plans on pause. But days after Delhi's air quality once again fell into the hazardous range after Diwali festival, and a thick brown haze settled over the city, the government said the scheme would finally be rolled out.

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