Global Warming Essay

932 Words 4 Pages
Global Warming

When one starts a car or burns wood, the last thought on their mind is the consequences to these actions. Unfortunately, the daily dangers to earth are not widely known. Due to the constant change of society, this planet must cope with various problems. One of the most important ecological structures is the ozone layer. The same shield that protects us from the sun's deadly radiation, can also act as a blanket engulfing us in heat. This situation is know as the greenhouse effect. Greenhouse gases cause global warming. What causes the greenhouse effect and what can be done to reduce global warming?

The problem of global warming has been around for some time now. Though not until recently has it become a
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This process is not new. In fact, without the greenhouse effect, the average surface temperature of the earth would be about 59 Fahrenheit degrees lower than it is today. "Long before civilization intervened , the thin blanket of gases that surround the earth was efficiently trapping a tiny portion of the sun?s heat and keeping it near the surface to warm up the air just enough to prevent temperatures from plunging to frigid extremes every night- which, of course, is exactly what happens on the moon and on planets like Mars that have very thin atmospheres" (Gore, 1992).

The greenhouse effect received its name because the atmosphere of the earth acts much like the glass roof on a greenhouse. Sunlight enters the greenhouse through the glass as it heats up the plants. Then, the warmth is trapped as the glass slows the withdraw of heat. Similarly, the earth?s atmosphere lets most of the sun?s light enter and heat the surface. The earth then sends this energy, called
Infrared Radiation, back into the atmosphere (showed in the diagram on page 7).
This is when the actual effect takes place. Not all of the Infrared Radiation is sent freely into space. Certain gases in the atmosphere absorb it and send it back toward earth. Such gases are Carbon Dioxide, Ozone, and water vapor. As stated earlier, this process becoming more important. Due to the burning of

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