The Great North Indian Haze

Over the last few years, smog India, as winter approaches. It is known as the North Indian Haze.

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The reason for the North Indian Haze is entirely natural because of a weather system called Western Disturbance.

Western Disturbance affecting the hills of Jammu and Kashmir may sometimes lead to a sudden reversal of winds from the usual dry and cool north-westerly to humid easterlies or south-easterlies, which could cause widespread fog in the plains of North India. Moreover, calm winds (having speed below 5 kmph) do not allow fog to lift.