NEW DELHI: Experts have termed Delhi govt's cloud seeding trials, held on Tuesday, a "hugely expensive, temporary and unsustainable" measure to deal with the capital's toxic pollution. Even if the artificial rain temporarily settles down the pollutants, the pollution will rise in one-two days, they say. According to the MoU signed between the Delhi environment department and IIT-Kanpur, the budget for cloud seeding is over Rs 3.2 crore for five trials —meaning one trial run costs Rs 64 lakh. Three trials have been done in north Delhi, and none of them led to any major rain. Delhi's air quality index (AQI) has been hovering in the ‘very poor' to ‘poor' range for the past few days. Read more: Anumita Roychowdhury, executive director, research and advocacy, Centre for Science and

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