Delhi Launches Cloud Seeding Trials to Combat Pollution
Delhi, the world’s most polluted capital, has begun experimental cloud seeding using silver iodide rockets to induce artificial rain and reduce air pollution. Officials conducted the first test flight in late October, but experts remain sceptical about the effectiveness due to the city’s typically dry, low-humidity winter air. Critics call the initiative a political stunt, stressing that only long-term, structural measures can truly improve air quality.
The Delhi regional government, supported by the ruling BJP, has initiated a cloud seeding program aimed at mitigating the city’s severe air pollution, which has ranked worst globally for over a decade. The process involves dispersing silver iodide particles into clouds from aircraft or drones to stimulate rain, with the goal of washing away pollutants. However, the first experimental flight took place only after months of delays due to unsuitable weather, and initial results have been underwhelming, as the technique requires dense clouds and high humidity—conditions rarely present in Delhi during winter. Experts, including those from the Centre for Atmospheric Sciences, have criticized the project as an ‘improper application of science’ and a political gesture, likening it to previous ineffective measures like anti-smog towers. They also warn of potential environmental and health risks from repeated chemical use. The opposition Congress Party has dismissed the effort as a ‘cruel joke’, arguing that any short-term, localized improvements do not justify the high cost. Internationally, cloud seeding has seen mixed results, with success largely dependent on ideal weather conditions. While government officials describe the trials as purely experimental and necessary for gathering data, many scientists and activists insist that only systemic changes—such as reducing emissions, controlling agricultural burning, and promoting sustainable transport—can provide a lasting solution to Delhi’s pollution crisis.
