The Pros And Cons Of Global Warming

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Global Warming
Global warming is “the gradual increase in the overall temperature of the Earth’s atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide and other pollutants” (Global Warming). The current climate changes that are occurring all over the world have sparked a growing controversy on whether global warming is indeed a result of human activity. Many of these individuals who play a role in this controversy argue that the current climate changes are simply part of the patterns seen in the Earth’s geological history or that it is simply caused by an increase in the brightness of the sun. This point-of-view is understandable as humanity is dependent on the climate for survival. However, many climatologists and scientists have found that the current climate changes are much more worrisome than previous climate changes. They have found that carbon dioxide (CO2) levels have increased over the years, because of an increase in the use of coal, oil, and gas, and that the Earth’s current pattern of warming is greater and faster than that of prehistoric warming episodes.
The first argument many individuals would make against global warming is that the current climate changes are simply part of the patterns seen in the Earth’s geological history. Global warming would easily be proven as a result of human activity if the Earth’s temperature had been stable for the majority of its geological history. However, for over two million years, during the Ice Ages, the Earth’s temperature has increased and decreased continuously. The Earth’s temperature rose from very cold temperatures that formed glaciers to very warm temperatures that melted glaciers and vice versa. There is a total of five major ice ages that took place throughout the Earth’s history: the Huronian, Cryogenian, Andean-Saharan, Karoo and Quaternary. Moreover, scientists at the Earth Observatory of NASA, have created a record of the Earth’s temperature over the past 800,000 years. This paleoclimate record shows the Earth’s many ice ages as well as years in which the Earth’s temperature was warmer than that of current climate changes (Ichoku). Thus, the current climate changes occurring all over the world are

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