Climate Change: Fact or Fiction

Topics: Global warming, Greenhouse gas, Climate change Pages: 4 (1332 words) Published: December 1, 2010
Weather can be defined as the state of the atmosphere including movements of energy like wind and precipitation. Climate is the generally prevailing weather patterns of a region. The climate of a region is made up of the different weather patterns. The weather patterns are usually repetitive according to the seasons. Where I’m from in southwest Nebraska it snows in the winter, rains in the spring, and is hot in the summer. The question is, has the weather and climate always been like this in Nebraska? We have proof that climate has changed in the past. Seventy million years ago there may have not been any ice on the North Pole. The region was most likely covered in forest. The amazing part of this hypothesis is that without the polar ice caps the ocean levels would be around seventy meter higher than they are now. Scientist also know that the world was in its most recent ice age about 2.6 million years ago. If the North Pole went from forest to ice sixty-eight million years, obviously the world has seen drastic changes before. This raises the question of whether or not this could happen to us again. Could the increases in temperature that everybody attributes to global warming just be a natural cycle of the planets climate? Most people think not. The logical answer for the steady increase in temperature is global warming due to the “Greenhouse Effect”. The Greenhouse Effect is caused by an increase in the concentration of “greenhouse gasses” in the atmosphere. Some of the most dominate greenhouse gasses are Carbon dioxide, Methane, Nitrous oxide, and Water vapor. Some people might argue that these gasses are found naturally in the atmosphere. The concentration of the gasses could be increasing due to natural factors. The atmosphere may be holding these gasses in for an unknown reason, or the environment may be producing higher concentrations naturally. This theory is unlikely according to data recorded in past years. Ice cores show that the concentration of...
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