whichever way the organisms that reside in Madagascar got there‚ many now appear to be in serious danger. Some of Madagascar’s forests have been deemed to be top priorities for conservation since 1995 (Ganzhorn et al.‚ 1997) due to the rate of deforestation across the island disrupting a
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Possible Overpopulation Solutions The human population growth of the last century is tremendous. It required only forty years after 1950 for the population to double from 2.5 billion to 5 billion. The factors affecting global human population are very simple. They’re fertility‚ mortality‚ initial population and time. India‚ China and USA are the top countries that are currently in crisis because of overpopulation. Many of our basic resources are strained such as‚ food; one out of every seven
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THE ADVERSE EFFECTS OF POPULATION GROWTH Some observers attribute nearly all of the world ’s maladies to excessive population growth. They claim that rapid population growth has at least three adverse effects on human well-being. First‚ it increases poverty--the number of people that are impoverished‚ the proportion of the community that is impoverished‚ and the severity of the impoverishment. Second‚ it increases environmental degradation--the misuse of natural resources--with adverse consequences
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just some of the many reasons why deforestation has become such a large problem today. Almost fifty thousand species become extinct every year due to deforestation. Such extreme cutting has severe ramifications that can be seen globally. Not only is it a habitat from the majority of the biomass that lives on earth‚ it is also home to tree hundred million people around the world who actively live in forests and depend on them directly
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Deforestation Good morning to lecturer and fellow classmates‚ today I would like to talk about deforestation. Deforestation is elimination of forest and woodland areas on the large scale. Nowadays‚ deforestation has risen to dangerous levels. Deforestation is a common problem among developing and develops countries. Most of the land was used for building and agricultural expansion. Commercial logging causes deforestation. Trees provide timber for building construction‚ furniture manufacture
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What are the Causes and Effects of Deforestation? Deforestation involves the cutting down‚ burning‚ and damaging of forests. Deforestation can be defined as the change of forest with depletion of tree crown cover more than 90%. However‚ depletion of forest tree crown cover less than 90% is considered forest degradation. Causes of Deforestation: The main causes of deforestation are summarized below: (i) Population explosion (ii) Agriculture: shifting cultivation‚ overgrazing‚ cash crop
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Technology is the Solution to Overpopulation About ten years ago while in a science museum‚ I saw a counter that estimated what the world population was at that given moment. Innocuous at first glance‚ since a number in excess of five billion is difficult to comprehend‚ what became alarming after watching the counter for a minute was the continual increase in the population. Thinking about the circumstances related to the population rise logically made the problem seem apparent. The earth is
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Deforestation is a serious problem today‚ and has been for a long time. It is one of the greatest threats to nature on Earth‚ if not the single greatest. It is one root cause of soil erosion‚ the root cause of global warming‚ and the greatest contributor to the endangerment and extinction of so many species throughout the world. To understand deforestation though‚ one must know exactly what it is first. Therefore‚ deforestation is defined by the Encyclopedia Britannica Online as "The cutting down
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will be lost over the next two decades” (From “Last of the Amazon” by Scott Wallace). Deforestation can be caused by many things‚ natural or unnatural. The number one cause can be said to be illegal logging or erosion‚ but we all know that is not it. Deforestation in the world is caused by man and the effects are devastating to the environment and can also effect global warming. Man can cause deforestation because of his greediness to want everything. For example‚ loggers in the Amazon are illegally
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ways for years‚ one of which is deforestation. Cutting down all the trees in a large area is called as deforestation. There are several reasons for damaging the forests. However‚ the most significant factor is human activities. These activities have some severe effects on forests. As indicated in “Deforestation: World Revolution”‚ today 31 million hectares of rain forests are destroyed every year which corresponds to area that is bigger than Poland (2003). Deforestation appears to be a significant issue
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