The contributions of combustion to air pollution and possible remedies are discussed. Control and reduction of air pollution from combustion is more feasible than from other sources because of its discrete localization. The gaseous products of combustion inevitably include H2O and CO2, NO and/or NO2, and may include N2O, SO2, SO3 and unburned and partially burned hydrocarbons. Soot, ash and other dispersed solids may also be present, but are not considered herein. Unburned and partially burned hydrocarbons are prima facie evidence of poor mechanics of combustion and should not be tolerated. On the other hand, NOx, SO2 and SO3 are unavoidable if the fuel contains nitrogen and sulfur. The best remedy in this latter case is to remove these species from the fuel. Otherwise their products of combustion must be removed by absorption, adsorption or reaction. NOx from the fixation of N-2 in the air and CO may be minimized by advanced techniques of combustion. One such method is described in some detail. If CO2 must be removed this can be accomplished by absorption, adsorption or reaction, but precooling is necessary and the quantity is an order of magnitude greater than that of any of the other pollutants.