The scientists around the world are emphasising on the warming influences occurring nearthe surface of the earth. They seem to be missing the very bitter truth of the amount of CO2 NOx gases released by the evergrowing number of jet aircrft flying at altitudes of about 40,000 ft above sea level. The temperatures of about -50 C at 10 mb pressure, these gases hang around at that level for years without desecending to lower levels. The CO2 NOx gases at the surface of earth are purified / converted by vegetation and other chemical pollutant controls. But there is no such coversion up there without any vegetation or other chemical control. Of course, the rate of fuel consumption per airliner km. is continuously getting decreased marginally by intense research. Will this be be sufficient to offset the enormity of fossil fuel burnt at that altitude ? according to a scholar from Univ. of Michgn,(Mr. Murty) a 747 aircraft from Minneapolis to Amsterdam consumes about 100000 liters of turbine fuel carrying around 250 passengers. This is abot 8 to 10 times the sp. fuel consumption per pass. km on surface. Now more and more people prefer to travel by air even for short distances of less than 500 km. Is there no solution to this problem of proliferation of air travel ? Can the governments ban flights less than 700 km ? According to Mr Murty, we can give about 50 to 100 years before the whole earth becomes a desert !! Have the eminent scientists recognised this stark but bitt
RE:Global warming
by Ramesh V on Jun 05, 2007 02:04 PM Permalink
While talking about the sky fuels, we will also talk about the Urbanization at the cost of agriculture/eco-system. We have no right to disturb our eco-system, if we do so, we have to pay a very high price. If we dont take care our next generation has to live in dark.
