The National Oceanic & Atmospheric Administration (NOAA) feels that airplane do not cause such a big deplition in the ozone and enviroment. They feel that there are other factors besides airplanes and it would not be reasonable to increase airplane tax or discontinue the use of airplanes.
Gregory Withee, NOAA assistant administrator for satellite and information services wrote in his Washington Post report "Waters Near Equator Show Alarming Warming Trends"; "... it is by no means clear how an increase of less than 1 percent per year in atmospheric greenhouse gases such as carbon dioxide could possibly cause extra warming to raise sea surface temperatures by 0.1 degree per year. Most likely it reflects a combination of several different factors in a complex relationship that is not yet understood."
The carbon dioxide released from jet airplane exhausts will not condense, instead it will disperse at that altitude, and may gradually descend to lower altitudes very slowly, taking several years.
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