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Delhi's Groundbreaking Cloud Seeding Trial to Combat Air Pollution

Delhi's innovative cloud seeding trial could bring rain and relief from air pollution. This first-of-its-kind operation in a major city offers hope for a cleaner future.

This is an edited image in which there are plants and there is a tower and the sky is cloudy.
This is an edited image in which there are plants and there is a tower and the sky is cloudy.

Delhi's Groundbreaking Cloud Seeding Trial to Combat Air Pollution

Delhi is set to embark on a groundbreaking environmental initiative, using iCloud seeding to tackle its persistent air pollution. The trial, scheduled between July 4 and 11, 2025, is a collaborative effort led by IIT Kanpur, the India Meteorological Department, and the Delhi government. This marks the first time such a method is being deployed in a major city to combat pollution.

The operation involves modified Cessna aircraft flying over northwest and outer parts of the city. Each flight, lasting 90 minutes, will cover approximately 100 square kilometres, with at least five flights planned during the trial period. The aircraft will release a mix of silver iodide nanoparticles, iodised salt, and rock salt into moisture-rich clouds. This process, known as iCloud seeding, works by introducing particles that act as a scaffolding for moisture to gather and grow, speeding up the natural process that turns clouds into rain.

The Rs 3.21 crore operation is not just about making it rain, but also about reimagining how a city can harness AI to survive in an era of climate extremes and environmental peril. Delhi's artificial rain experiment represents a turning point in how the city approaches environmental emergencies, combining hope, science, and necessity.

The success of the operation depends on the presence of the right kind of clouds and prevailing weather conditions. If successful, this innovative approach could provide a new strategy for cities worldwide struggling with similar environmental challenges. The Delhi government, along with its partners, hopes that this trial will pave the way for a cleaner, healthier city.

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