El Niño Winter May Exacerbate Delhi's Air Pollution Crisis
El Niño Winter May Exacerbate Delhi's Air Pollution Crisis
IN · Published Nov 2, 2026
• Delhi and the Indo-Gangetic plain are facing heightened air pollution risks this winter due to an 'unprecedented strength' El Niño event, expected to peak between November and January.
• El Niño, driven by warming sea surface temperatures in the Pacific, is linked to reduced rainfall and slower wind speeds, which can trap pollutants in the atmosphere for longer durations.

Impact & Risks

The combination of slower wind speeds and reduced rainfall during El Niño winters can lead to prolonged air pollution episodes in Delhi and the Indo-Gangetic plain. This is particularly concerning for vulnerable populations, including children, the elderly, and those with respiratory conditions. The delayed harvest of kharif crops may increase stubble burning, further contributing to particulate matter in the air. Additionally, fewer western disturbances could result in less precipitation, which typically helps flush out pollutants. These factors may lead to a significant deterioration in air quality, posing health risks to millions.

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