The Human Impact On Natural Environment

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The human impact on natural environment is one of the most pressing issues of contemporary times and a subject of discussion. The increasing human population and the rising level of technology both have become significant factors in raising the environmental problems. There are several environmental problems around the world today which occurred due to both natural and human causes. Of all the global environmental problems, desertification is, perhaps, the most threatening problem. Desertification is the expansion of desert lands into previously non-desert areas. Today in many countries lands are becoming into deserts,and due to the conditions in the world soon we will not be able to take it back. There are two main causes of desertification,one is human activities and the other is climatic variations. The first and the most important cause of desertification is human activities. Human causes includes Overgrazing, Over cultivation, Mismanagement of irrigation, Deforestation, Urban and industrial activities, mining and exploitation of resources etc. All human causes are related to over population. Due to overpopulation there is great pressure on land and resources. According to Neo Malthusian, demographic pressure leads to overuse and misuse of resources (Malthus, 1798). Earlier desertification was only a natural formation but day by day humans are becoming responsible for it because of land mismanagements. One theory argues that resources under common
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