How the north India smog traveled 2000km+ from Bihar and West Bengal to Chennai on the southeast coast. Satellite image from Monday shows the smog stretching all the way across the ocean. Red line=modeled route of air mass. @Sunil_S_Dahiya @nandi555 pic.twitter.com/xhYMeP7Krn

— Lauri Myllyvirta (@laurimyllyvirta) November 6, 2019