A fight against air pollution - Do you know that what is air pollution? What is your views? It is defined as the excessive discharge of undesirable foreign substances in to the atmospheric air,there by adversely affecting the quality of air and causing damage to human,plants and animal lives. The major cause of air pollutions are, tremendous increase in population,automobiles,rapid industrialization,rapid urbanization,automobiles,natural phenomenon like volcanic eruptions,radioactivity and forest fires,deforestation etc. There are few methods i know to reduce air pollution due to automobiles. 1.the extent of unburnt fuel,carbon,hydrocarbons etc in exhaust can be controlled by using an engine with better design.