The Impact of Global Warming on Human Health Essay

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The Impact of Global Warming on Human Health

Throughout the world, the presence of particular diseases and other threats to human health depend largely on the local climate. Extreme variation in temperature can directly, and indirectly, cause the loss of human life. The threat of a gradual increase in temperature could be catastrophic to the world, as we know it. In 1999, a heat wave killed more than 250 people in Chicago alone (Union of Concerned Scientists). Many consider such an event as a natural disaster. However, scientists warn the average global temperature has increase 0.5 ° F in the past 40 years. This is half of the total increase in surface temperature, 1°F, since the late 19th century. At its current rate, the global
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Thereby leading to an increase in the earth’s temperature, or Global Warming. Although, a increase of a few degrees over hundreds of years doesn’t seem like much to some people, the variance is great enough to allow some deadly bacteria to thrive and disease to spread. Moreover, warmer temperatures can increase air and water pollution, which could harm human health.

In the past few years, there has been an increasing amount of reports that correspond with these theories. Worldwide, there have been reports of cases indicating a spread of mosquito-born infectious disease, heat stroke and asthma / respiratory disease. It is believed that the 1F change in average global temperature has much to do with such harm to human health.

For example, there are an increasing number of reports of mosquito-born, infectious disease in areas that have not been previously exposed. Such cases include a malaria outbreak in the summer of 2003 in the Kenyan highlands and a spread of dengue and yellow fever in the Andes Mountain of Colombia, previously limited to below 3,300 feet, is now seen as high as 5,600 feet (Union of Concerned Scientists). Many countries from Tanzania and Indonesia, to as close as Mexico, have also reported outbreaks of such infectious disease. The outbreaks are a result of an increase of temperature in areas which mosquitoes previously could not breed. The populations of these areas are also more susceptible to
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