Authorities in Delhi, India, conducted an unsuccessful cloud seeding trial on Tuesday in an effort to combat the city’s escalating air pollution crisis. The experiment, led by the Indian Institute of Technology (IIT) Kanpur and the Delhi government, aimed to induce rainfall by dispersing silver iodide and sodium chloride particles into the atmosphere using a Cessna aircraft. However, the attempt—the first in 50 years—was deemed “not completely successful” due to insufficient moisture in the air. Despite the lack of rain, IIT Kanpur reported a measurable reduction in particulate matter, suggesting that cloud seeding could still contribute to improved air quality under limited moisture conditions. Delhi’s Air Quality Index (AQI) has remained alarmingly high, ranging between 300 and 400—nearly 20 times the acceptable limit—over the past two weeks. Experts, including IIT Kanpur’s director Manindra Agarwal, have cautioned that cloud seeding is an emergency measure rather than a long-term solution. Delhi’s Environment Minister Manjinder Sirsa announced plans to repeat the trial in the coming weeks as moisture levels in the clouds are expected to increase. Historically, Delhi’s first cloud-seeding experiment dates back to 1957, with another attempt in 1972. The city had considered the technique in 2023 but faced delays due to pending court approvals. While cloud seeding has shown mixed results globally—with China claiming success during the Olympics and the UAE facing skepticism after floods in Dubai—its efficacy remains debated. Climate change expert Abinash Mohanty emphasized the lack of empirical evidence on its impact and the inherent limitations of altering natural processes.