Global Warming Essay

1182 Words 5 Pages
Global Warming

For the last 20 years or so the subject of global warming has spawned heated debate among the world’s brightest minds. Its causes and effects, if either actually exists, have been hotly debated. The most popular hypothesis is called the greenhouse effect with the agreed upon cause being green house gasses. These gasses are all naturally occurring and include water vapor, methane, oxygen, and the now infamous carbon dioxide. Greenhouse gasses exist in the atmosphere and have an effect on our global weather. They trap radiated heat and prevent it from exiting our atmosphere. This supposedly increases global temperatures and is, or will, cause melting of the polar ice caps. This in turn is expected to raise sea level and
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The easiest analogy is that of a spinning top. The top doesn’t spin perfectly round about the axis but wobbles slightly. Again, this process moves the poles closer to, or farther away from, the sun. This cycle takes about 23,000 years. Singularly, none of these cycles seems to have a noticeable effect. But, when all three work together there is a profound effect. Geologists have been able to find a direct correlation between these cycles and drastic weather extremes, specifically greenhouse and icehouse ages.

Back to global warming
Now that we know that global temperature changes are a naturally occurring phenomena the question still remains, what about greenhouse gasses? Do they exist? Of course they do. Do they have an effect on our present weather? Not likely. If anything, they may actually ultimately cause the seas to regress. It’s a scientific fact that increased temperatures will increase evaporation. In temperate climates this will mean more tropical weather activity which will release great amounts of heat and energy thus reverting to a cooler climate. Even if there is melting of the ice caps the increased evaporation will more than offset the melted ice in volume. Increased evaporation means increased rainfall. There is also substantial evidence to suggest that the upper level winds will deposit much of this rainfall over the Polar Regions as snow. Snow has a very high albedo (reflectivity) and direct more sunlight back into

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