Delhi's Dirty Air: Cloud Seeding Trial Hopes for Rainy Relief
India's capital has been battling some of the world's worst air pollution for years. The city's chronic smog problem has earned it a spot as the world's most polluted metropolis, and experts say it's taking a toll on residents' health.
In an effort to alleviate the crisis, Delhi's government is trying cloud seeding – a technique that aims to induce artificial rain by adding particles to clouds. The plan involves aircraft dispersing silver iodide or other substances into clouds, hoping to create precipitation.
While some see this as a potential solution, others are skeptical. "It's no panacea," said experts. "The effect is often small." Cloud seeding requires perfect conditions – namely, clouds – which are scarce over Delhi during the winter months when pollution spikes. Moreover, it doesn't address the root causes of pollutants.
Critics have likened this plan to a similar failed experiment from a few years ago: the "smog towers" erected in the city by a previous government. Those efforts were widely discredited for being ineffective and wasteful.
"We're talking about science misapplied and ethics ignored," warned two professors at Delhi's Centre for Atmospheric Sciences. "We have little research into long-term effects on agriculture and human health."
The Indian government remains optimistic, however, and its plan has already taken to the skies. The first trial flight was conducted recently, launching seeding flares into the atmosphere.
Delhi's air quality remained hazardous after a recent Diwali festival, prompting the government to bring the plan forward. If successful, it promises artificial rain on October 29 – but experts caution that results may be disappointing.
The city has been struggling with its dirty air for years. Pollution levels rose by 6% this year, according to official data. The fine particulate matter in Delhi regularly exceeds Beijing's record-breaking levels from 2013.
While cloud seeding may not clear the air entirely, it is a glimmer of hope – however small – that there are solutions to address India's most pressing environmental crisis.
India's capital has been battling some of the world's worst air pollution for years. The city's chronic smog problem has earned it a spot as the world's most polluted metropolis, and experts say it's taking a toll on residents' health.
In an effort to alleviate the crisis, Delhi's government is trying cloud seeding – a technique that aims to induce artificial rain by adding particles to clouds. The plan involves aircraft dispersing silver iodide or other substances into clouds, hoping to create precipitation.
While some see this as a potential solution, others are skeptical. "It's no panacea," said experts. "The effect is often small." Cloud seeding requires perfect conditions – namely, clouds – which are scarce over Delhi during the winter months when pollution spikes. Moreover, it doesn't address the root causes of pollutants.
Critics have likened this plan to a similar failed experiment from a few years ago: the "smog towers" erected in the city by a previous government. Those efforts were widely discredited for being ineffective and wasteful.
"We're talking about science misapplied and ethics ignored," warned two professors at Delhi's Centre for Atmospheric Sciences. "We have little research into long-term effects on agriculture and human health."
The Indian government remains optimistic, however, and its plan has already taken to the skies. The first trial flight was conducted recently, launching seeding flares into the atmosphere.
Delhi's air quality remained hazardous after a recent Diwali festival, prompting the government to bring the plan forward. If successful, it promises artificial rain on October 29 – but experts caution that results may be disappointing.
The city has been struggling with its dirty air for years. Pollution levels rose by 6% this year, according to official data. The fine particulate matter in Delhi regularly exceeds Beijing's record-breaking levels from 2013.
While cloud seeding may not clear the air entirely, it is a glimmer of hope – however small – that there are solutions to address India's most pressing environmental crisis.