What Causes ‘Fog’ and How Is It Different from ‘Smog’?

Fog is like a cloud that touches the ground, it happens when the air gets cold and moist. Smog is more like fog mixed with dirt or pollution from cars and factories. Fog is natural, but smog is often man-made.

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Examples

Fog makes your bike ride feel like riding through a giant, soft pillow.
Smog turns the city into a brownish blur, making it hard to see anything beyond the street.
You can walk outside and still see clearly in fog, but in smog, you might need glasses just to read your phone.

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Categories: Environment · fog,smog,weather