Punjab's crop residue burning threatens South Asian air quality
Thick smoke aerosol plumes from the burning may significantly affect atmospheric circulation.
Nov 05, 2015, 20:06 PM IST
Delhi engulfed in smog as Punjab farmers burn paddy
Delhi's air quality index hits the poor zone with thick smog enveloping Delhi-NCR region.
Nov 02, 2015, 08:48 AM IST