Over the year human being kept on piling up population without considering the environmental effects (Nadakavukaren, 2011, pp. This has made the situation even worst. Surface water is also an important natural resource that the global population using extensively. Increasing human population has already used up half of the global accessible surface water. It is a dangerous trend for the human civilization and for the future of human being. According to a survey report, with the increasing population, needs and demands of the human being are also varying and increasing. But natural resources are not increasing in that rate. All these kinds of imbalances between the human population growth and the finite global resources have created lots of problems like, food shortages, lung diseases and etc (Suzuki & Hanington, 2012, pp. Exponential growth in human population has increased the demands for the food items. But natural resources have certain limitations. It is being observed that to meet the increasing food demands of the global human being, people has to come up with artificial ways to grow the crops by using fertilisers and chemicals (McKee, 2005, pp. It has created lots of health hazards for the human being. There is no sign of end to this limit less growth of human population. Fixation of terrestrial nitrogen is also an important factor or matter of concern. It creates significant pressure on the finite capacity of the world. According to a research report, 50% of the terrestrial nitrogen fixation is the result of the various human activities (Davies, 2013, pp. All these activities are integral parts of the human lives and create utter pressure on the finite global resources. Here comes the concept of Malthusian catastrophe. According to this concept, population growth has outperformed the agricultural growth significantly and there is no sign of the improving situation. Most of the earth surface, almost 70% of the total earth surface is covered by the oceans. That is why it has significant contribution towards the total fundamental productivity. But population explosion in last 200 years has exploited this natural resource significantly (Jackson, 2011, pp. Most of the time in last 200 years human being has not been able to come up with enough alternative resources but they have used the existing resources significantly. Here comes the scope of pessimist model. According to
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