Wola

<BR>The main gases that cause the greenhouse effect are water vapor, carbon dioxide (CO2), and methane, which comes mainly from animal manure. Other gases like nitrogen oxide and chloroflurocarbons, man made gases, get caught in the atmosphere as well. The decay of animals and respiration are two main natural sources of carbon dioxide. In my opinion, we the people of the world should try to slow down the emission of greenhouse gases and/or find ways to balance the gases so the climate doesn’t change so rapidly. If it did, we would be forced to adapt to the new climate that we brought upon ourselves. If we had an international cooperation to put a damper on the production of chloroflurocarbons and slowed down the use of fossil fuels it would dramatically slow done the process of "global warming". Carbon dioxide pollution from the increase of industry and transportation is a major cause of global warming. These two causes are connected with the growth in the world population. As the population grows the necessity for food and other products increase, therefore industry must grow to keep up with the demand. The increase in transportation is directly due to the growing population and the need for jobs and the growing congestion on our highways. Another cause in global warming is deforestation. Trees remove carbon dioxide from the air as they grow. The carbon dioxide is released back into the air as they are cut and burned. The forest ability to reduce the carbon dioxide from the atmosphere is decreasing due to massive deforestation around the world. These causes seem simple and fixable, but if they are not cut down, the Earth and its inhabitants will feel the effects.

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<br>Over the last hundred years, the global temperatures have been increasing slowly, but steadily. Since 1980, the temperature has risen 0.2 degrees Celsius (0.4 degrees Fahrenheit) each decade. Scientist predict that if we continue putting the same amount of gas into the atmosphere, that by the year 2030 the temperature will be rising as much as 0.5 degrees C (0.9 degrees Fahrenheit) or more per decade. Overall, the global temperature could rise anywhere from 5 to 9 degrees over the next fifty years.

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<br>If the temperatures do rise, as predicted, several things could happen. The increase of temperature could alter the growth of crops in areas near the equator due to insufficient rain and heat. This could really hurt countries that rely in imported food. With the high temperatures the polar ice caps could melt and cause the sea water level to go up 1 to 3 feet. This could take out small islands, coastal cities and some shallow rivers. The Everglades in Florida would be almost, if not totally, wiped right off the map. The Everglades is the home for many animals and plant life. If it did get flooded, they would all have to move northward across very dry land, which they will not be able to endure for very long. When the hot temperatures do spread southward and northward, tropical disease will spread with it. Diseases that were down in Mexico will, maybe, occur in North and South Carolina or eventually Vermont. These new diseases will be hard to deal with causing many more deaths and illnesses that before. The financial problem with this is that the flooding will cause dams to be built and cities to be reconstructed. The shortage in food will cause the price of the food to go up and with all the diseases, we will need more medical supplies and workers. All of this combined could and will cost a lot of money if we don’t do something about it now.

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<br>The computer models can’t predict exactly that the climate is going to be in the future, but they can come close to what it will be like down the road. Scientists proved this by predicting, with computers, what the climate was in the past. Then, by looking back in records, they found that the predictions were close to being right. The "Topex" (Topographic Experiment) collected information on the changes of the sea level, the temperatures across