Dubai uses cloud seeding to tackle dust, but why can't Delhi trigger rain to beat toxic smog?

Delhi frequently experiences air pollution crises during winter, with air quality plummeting to hazardous levels. Residents struggle to breathe, and authorities introduce emergency measures to contain the worsening situation. However, no lasting solution has been found despite successive pollution-control plans and repeated interventions.

The Indian government is now considering cloud seeding as a possible intervention to tackle rising pollution levels, especially following Diwali. Two trial runs have already been conducted near the airport. However, previous attempts in 2025 did not yield encouraging results. While pollution levels fluctuated, no rainfall was recorded, and in some cases, it worsened afterward.

Cloud seeding involves introducing substances like silver iodide or salt into suitable clouds to encourage the formation of larger water droplets or ice crystals, potentially triggering precipitation. However, Delhi's atmosphere often lacks sufficient moisture, vertical development, and the right microphysical characteristics for the seeding agents to work effectively.

Stable atmospheric conditions, temperature inversions, and stagnant air during winter further restrict the dispersal of pollutants and their accumulation close to the surface.

The UAE has invested in cloud seeding to address water scarcity and improve rainfall availability, but its efforts are geared towards increasing natural rainfall, not mitigating air pollution. The meteorological conditions, pollution sources, and seasonal weather patterns in the two regions differ significantly, making it improbable that a technique successful in the UAE would yield similar results in Delhi.