Temperature inversion, weak winds and multiple sources of emissions worsen Delhi's winter air pollution. Here's how weather conditions, geography and pollutants combine to create the annual smog crisis. Why Does Delhi's Air Pollution Get Worse In Winter? The Science Behind The SmogOOutlook News DeskCurated by: Shvetank Maurya Published at: 6 November 2026 3:37 pmTemperature inversion, weak winds and multiple sources of emissions worsen Delhi's winter air pollution.