Population is caused by many factors among which the following may be noted: 

Abuse of Nature by man for his Greed: Of all the living organisms it is only man who is causing pollution. Man’s attempts to use natural resources for genuine purposes are not problematic; but their greed by him, is causing this problem. According Write “human greed and ignorance have allowed our culture to develop an ecological crisis like pollution”.

Population Explosion Hastening the process of Pollution: If we keenly observe the consistent increase in the human population we come to believe that the role of population explosion is the most dominant cause of environmental pollution. According South wick- human population explosion is the main cause of pollution.

Uncontrolled Technology: Modem age places high premium on science and technology. Cores of rupees are being spent for the advancement of these two. But unfortunately, every technological advance is accompanied by some unwanted, unintended and unhappy consequences. We have failed to establish any comprehensive social control over technological development or use. This is because of the fact that in well developed countries, citizen consumes more food, use more fertilizer and pesticides, fuel, minerals, automobiles and other manufactured products of all kinds.

Unplanned and Imbalanced Industrialization: Increasing and controlled industrialization is the greatest contributor to pollution. Hence industrialized countries are mainly responsible for the environment pollution, the worst pollution occurs in countries where there have .been the greatest scientific, technological and industrial advances. Developing countries such as India, Thailand, Philippines and others have been caught in the spiral of industrial growth.

Thoughtless burning of agricultural wastes and destruction of forests can cause pollution: Rich industrialized countries are not only culprits in causing pollution. Recent investigations indicate that tropical grassland fires and the burning of agricultural wastes contribute almost as much pollution as do factories all over the world. There are 2000 million hectares of burnable land in the world in the form of cultivation land, permanent meadows and pastures.

Excess of Consumerism: Our changing attitudes and tendencies are also partially responsible for environmental pollution. We are.more and more leaning towards worldliness, luxuries and pleasure-seeking. We want to purchase and possess more and more luxury items like separate cars, mobiles, computers, iphones, air conditioners, air coolers, dozens of pair of dresses furniture of most modem styles, and so on. This tendency or craziness towards more and more purchases is often called ‘consumerism’.