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Is global warming real?
Question
#75581. Asked by mushu-scooby. (Feb 07 07 4:29 PM)
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skysmom65
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Much of the debate surrounding global warming has centered on the accuracy of scientific predictions concerning future warming. To predict global climatic trends, climatologists accumulate large historical databases and use them to create computerized models that simulate the earth's climate. The validity of these models has been a subject of controversy. Skeptics say that the climate is too complicated to be accurately modeled, and that there are too many unknowns. Some also question whether the observed climate changes might simply represent normal fluctuations in global temperature. Nonetheless, for some time there has been general agreement that at least part of the observed warming is the result of human activity, and that the problem needs to be addressed. In 1992, at the United Nations Conference on Environment and Development, over 150 nations signed a binding declaration on the need to reduce global warming.
In 1994, however, a UN scientific advisory panel, the Intergovernmental Panel on Climate Change, concluded that reductions beyond those envisioned by the treaty would be needed to avoid global warming. The following year, the advisory panel forecast a rise in global temperature of from 1.44 to 6.3°F (0.8–3.5°C) by 2100 if no action is taken to cut down on the production of greenhouse gases, and a rise of from 1 to 3.6°F (0.5–2°C) even if action is taken (because of already released gases that will persist in the atmosphere).
MORE: http://www.answers.com/global%20warming%20
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What-A-Mess
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There is no "large historical database" concerning the weather. Modern weather data is about 55 years old. We have only been keeping temperature and rain fall records for about 112 years.
There exists many long and short term weather trends that occur naturally. For instance....The first time we, the public, heard of "El Nino" was about ten years ago, yet this natural weather trend caused documented major problems for the Pacific Fleet in World War II. Global climate predictions, at this stage, are nothing better than as semi-educated guess.
Note. Polar Ice (the North Pole completely and a fair portion of the South Pole) is floating. Floating ice displaces more water water than the actual volume that it is equal to when it melts. So in actuality, if an Ice cap were to melt the water volume height/level would DECREASE not raise Ocean levels. As for Glaciers...... 3% of the Earths water is fresh with 0.9 being contained in Caps, Glaciers and ground water. This is a SMALL portion of water. We are not going to drown if there were a total melt down (which is not going to happen).
Sleep easy. This is supposed to be happening.
Has man increased the rate of melt. YES. Should we all run out and buy a boat. NO!
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