SCI 275 WK 5 CheckPoint Atmospheric Issues_Apeendix D

SCI 275 WK 5 CheckPoint Atmospheric Issues_Apeendix D -...

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Issue Sources Health/Environmental Effects Carbon dioxide (CO 2 ) In addition to emission through human activities, greenhouse gases like carbon dioxide (CO2) also occur naturally in the earth’s atmosphere. The EPA (2009) reported that “in 2005, the global atmospheric concentration of CO2 were 35% higher than they were before the industrial revolution” (Climate Change- Greenhouse Gas Emission section). Human activities that increase CO2 concentrations in the atmosphere include combustion of fossil fuel like the burning of coal, oil, and deforestation. In addition to automobile and industrial facilities. Natural sources include the removal of billions of tons of atmospheric CO2 from the atmosphere by oceans and growing plants. Large amounts of CO2 in humans can starve the lungs of much needed oxygen that can result in asphyxiation. Additionally, the pH balance of the human body can become acidic if CO2 is absorbed in the blood. Greenhouse effect helps to regulate the earth’s temperature through a process that occurs when heat from sunlight is absorbed by greenhouse gases, subsequently trapping the heat near the earth’s surface. The extensive and unnatural growth of greenhouse gases like carbon dioxide, CFC’s, nitrogen oxides, and methane have been linked to the earth’s changing climates, resulting in global warming. Global warming can manifests itself in the forms of increase storm activities and melting ice caps which
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SCI 275 WK 5 CheckPoint Atmospheric Issues_Apeendix D -...

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