Does air pollution affect global warming?

Air pollution occurs when the air contains gases, dust, smoke from fires, or fumes in harmful amounts.  They are also released from natural processes such as volcanic eruption.

Tiny atmospheric particles, called aerosols, are a subset of air pollution that are suspended in our atmosphere.

Light, white aerosols reflect solar radiation, making the air and Earth surface below them a bit cooler than they would otherwise be. Black carbon aerosols, similar to the soot in a chimney, absorb sunlight rather than reflecting it. This warms the layer of the atmosphere carrying the black carbon, but also shades and cools the surface below.

Considering both types of aerosols, over a long period, the net result from aerosols has been estimated to partially offset the rise in global mean surface temperature. It has also been estimated that this is a minor offset in relative terms.

So: The contribution of air pollution to global warming is minor and insignificant.