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Overpopulation

Overpopulation is a term that refers to a condition by which the population density enlarges to a limit that provokes environmental deterioration, a remarkable decline in the quality of life, or a population collapse. The term population density means the number of inhabitants dwelling in a specific area.
    The impact of human population on the environment has been severe. Some animal species have been destroyed or forced to live in inhospitable regions by the advance of urban areas, pollution is a problem that is increasing gradually because we are using more cars. Emerging countries are not paying attention to environmental issues because of the feeding demands of their ever growing populations. Human overpopulation has been attributed to diverse factors such as the increase in lifespan, the absence of natural enemies, the improvement in the quality of life and the access to get better goods. Every year, more people are added to the world's population.
    Overpopulation produces a number of effects. Due to the opening out of human settings, sixteen million hectares of forest are cut off every year. The accelerated growth of the human population, has led to the destruction of natural population and natural habitats of many species. People are invading the habitats of those species, driving them to unwelcoming places and condemning the native species to extinction. About six million people die every year from illness associated with organic waste. Too dense human communities produce tonnes of solid waste daily, some consume large quantities of energy and emit more pollutants to the environment. Water necessities will increase to 20% by 2025. Approximately, one half of wetlands around the world have been lost since 1900. The ozone layer has been gradually ruined by the effects of the Chlorofluorocarbon gases used in refrigerators and aerosol cans. The concentration of CFCs has been increased as the human population has grown, and the thickness of the ozone layer has been reduced to the extent that a hole in the ozone layer has been formed. Scientists have found that there are other emissions derived from human activities, which have contributed to the depletion of the ozone layer.

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