Farmers Evade Satellites: Stubble Burning Tactics Shift

Farm fires, a primary driver of pollution in northwestern India and the Delhi-National Capital Region (NCR), are seeing year-on-year declines. However, studies indicate farmers are now setting fields ablaze after 3 PM to circumvent satellite detection, prompting intensified ground-level monitoring. This shift in tactics aims to avoid detection by polar-orbiting satellites, which typically capture such incidents between 10:30 AM and 1:30 PM.

During a joint review, Union environment minister Bhupender Yadav stressed the need for enhanced ground surveillance, particularly focusing on specific districts in Punjab and Haryana. He urged district collectors to conduct on-the-ground assessments and strengthen enforcement during the satellite monitoring gap window. Union agriculture minister Shivraj Singh Chouhan called for "war footing" action and emphasized providing farmers with accessible alternatives.

Significant reductions in stubble burning have been reported in Haryana (53.3%) and Uttar Pradesh (32%) between September 15 and October 12 compared to the previous year. Rajasthan and Madhya Pradesh, however, remain areas of concern, with action plans being developed. Punjab has seen a marginal decline. States are also deploying drones for real-time monitoring, with a focus on the late afternoon and evening hours when evasion is more likely.

Data linking stubble burning incidents with the Commission for Air Quality Management (CAQM) and the Central Pollution Control Board (CPCB) is crucial for effective monitoring. Meteorological forecasts affecting air pollution in the NCR will also be integrated to enable timely preventive actions.